diff --git a/src/Tasks/Microsoft.CSharp.targets b/src/Tasks/Microsoft.CSharp.targets
index 80361f7c441..55e2a28888d 100644
--- a/src/Tasks/Microsoft.CSharp.targets
+++ b/src/Tasks/Microsoft.CSharp.targets
@@ -17,29 +17,7 @@ Copyright (C) Microsoft Corporation. All rights reserved.
 
 <Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
 
-   <!--
-        In VS 2010 SP1 and VS 2012, both supported for asset compatibility, the MSBuild installed
-        as part of them did not enforce using the local ToolsVersion (4.0) in all cases, but instead
-        just used whatever ToolsVersion was in the project file if it existed on the machine, and
-        only forced 4.0 if that ToolsVersion did not exist.
-
-        Moving forward, we do want to enforce a single acting ToolsVersion per version of Visual Studio,
-        but in order to approximate this behavior on VS 2010 SP1 and VS 2012 as well, we've redirected
-        the targets:  If we're building using 4.X MSBuild (which doesn't define the new reserved
-        property, MSBuildAssemblyVersion), we'll point right back at the 4.0 targets, which still exist
-        as part of the .NET Framework.  Only if we're using the new MSBuild will we point to the current
-        targets.
-   -->
-
    <Choose>
-      <When Condition="'$(MSBuildAssemblyVersion)' == ''">
-         <PropertyGroup>
-            <CSharpTargetsPath>$(MSBuildFrameworkToolsPath)\Microsoft.CSharp.targets</CSharpTargetsPath>
-            <!-- Same condition as in .NET 4.5 C# targets so that we can override the behavior where it defaults to
-                 MSBuildToolsPath, which would be incorrect in this case -->
-            <CscToolPath Condition="'$(CscToolPath)' == '' and '$(BuildingInsideVisualStudio)' != 'true'">$(MsBuildFrameworkToolsPath)</CscToolPath>
-         </PropertyGroup>
-      </When>
       <When Condition="'$(IsCrossTargetingBuild)' == 'true'">
          <PropertyGroup>
             <CSharpTargetsPath>$(MSBuildToolsPath)\Microsoft.CSharp.CrossTargeting.targets</CSharpTargetsPath>
@@ -52,144 +30,10 @@ Copyright (C) Microsoft Corporation. All rights reserved.
       </Otherwise>
    </Choose>
 
-
-   <PropertyGroup Condition="'$(MSBuildAssemblyVersion)' == ''">
-      <!--
-           Overrides for the Microsoft.Common.targets extension targets. Used to make sure that only the imports we specify
-           (hard-coded to 4.0 locations) are used, not the 12.0 locations that would be used by default. Defined here because
-           Microsoft.CSharp.targets imports Microsoft.Common.targets from the current directory rather than using MSBuildToolsPath,
-           so defining these in Microsoft.Common.targets alone would not suffice for C# projects.
-
-           NOTE: This logic is duplicated in Microsoft.VisualBasic.targets (VB has the same problem) and in Microsoft.Common.targets
-           (for anyone who DOES import it directly), so for any changes to this logic in this file, please also edit the other two.
-       -->
-      <ImportByWildcardBefore40MicrosoftCommonTargets Condition="'$(ImportByWildcardBefore40MicrosoftCommonTargets)' == ''">$(ImportByWildcardBeforeMicrosoftCommonTargets)</ImportByWildcardBefore40MicrosoftCommonTargets>
-      <ImportByWildcardBefore40MicrosoftCommonTargets Condition="'$(ImportByWildcardBefore40MicrosoftCommonTargets)' == ''">true</ImportByWildcardBefore40MicrosoftCommonTargets>
-
-      <ImportByWildcardAfter40MicrosoftCommonTargets Condition="'$(ImportByWildcardAfter40MicrosoftCommonTargets)' == ''">$(ImportByWildcardAfterMicrosoftCommonTargets)</ImportByWildcardAfter40MicrosoftCommonTargets>
-      <ImportByWildcardAfter40MicrosoftCommonTargets Condition="'$(ImportByWildcardAfter40MicrosoftCommonTargets)' == ''">true</ImportByWildcardAfter40MicrosoftCommonTargets>
-
-      <ImportUserLocationsByWildcardBefore40MicrosoftCommonTargets Condition="'$(ImportUserLocationsByWildcardBefore40MicrosoftCommonTargets)' == ''">$(ImportUserLocationsByWildcardBeforeMicrosoftCommonTargets)</ImportUserLocationsByWildcardBefore40MicrosoftCommonTargets>
-      <ImportUserLocationsByWildcardBefore40MicrosoftCommonTargets Condition="'$(ImportUserLocationsByWildcardBefore40MicrosoftCommonTargets)' == ''">true</ImportUserLocationsByWildcardBefore40MicrosoftCommonTargets>
-
-      <ImportUserLocationsByWildcardAfter40MicrosoftCommonTargets Condition="'$(ImportUserLocationsByWildcardAfter40MicrosoftCommonTargets)' == ''">$(ImportUserLocationsByWildcardAfterMicrosoftCommonTargets)</ImportUserLocationsByWildcardAfter40MicrosoftCommonTargets>
-      <ImportUserLocationsByWildcardAfter40MicrosoftCommonTargets Condition="'$(ImportUserLocationsByWildcardAfter40MicrosoftCommonTargets)' == ''">true</ImportUserLocationsByWildcardAfter40MicrosoftCommonTargets>
-
-      <ImportByWildcardBeforeMicrosoftCommonTargets>false</ImportByWildcardBeforeMicrosoftCommonTargets>
-      <ImportByWildcardAfterMicrosoftCommonTargets>false</ImportByWildcardAfterMicrosoftCommonTargets>
-      <ImportUserLocationsByWildcardBeforeMicrosoftCommonTargets>false</ImportUserLocationsByWildcardBeforeMicrosoftCommonTargets>
-      <ImportUserLocationsByWildcardAfterMicrosoftCommonTargets>false</ImportUserLocationsByWildcardAfterMicrosoftCommonTargets>
-
-      <CustomBeforeMicrosoftCommonTargets Condition="'$(CustomBeforeMicrosoftCommonTargets)' == ''">$(MSBuildExtensionsPath)\v4.0\Custom.Before.Microsoft.Common.targets</CustomBeforeMicrosoftCommonTargets>
-      <CustomAfterMicrosoftCommonTargets Condition="'$(CustomAfterMicrosoftCommonTargets)' == ''">$(MSBuildExtensionsPath)\v4.0\Custom.After.Microsoft.Common.targets</CustomAfterMicrosoftCommonTargets>
-
-      <!-- Overrides for the Microsoft.CSharp.targets extension targets -->
-      <ImportByWildcardBefore40MicrosoftCSharpTargets Condition="'$(ImportByWildcardBefore40MicrosoftCSharpTargets)' == ''">$(ImportByWildcardBeforeMicrosoftCSharpTargets)</ImportByWildcardBefore40MicrosoftCSharpTargets>
-      <ImportByWildcardBefore40MicrosoftCSharpTargets Condition="'$(ImportByWildcardBefore40MicrosoftCSharpTargets)' == ''">true</ImportByWildcardBefore40MicrosoftCSharpTargets>
-
-      <ImportByWildcardAfter40MicrosoftCSharpTargets Condition="'$(ImportByWildcardAfter40MicrosoftCSharpTargets)' == ''">$(ImportByWildcardAfterMicrosoftCSharpTargets)</ImportByWildcardAfter40MicrosoftCSharpTargets>
-      <ImportByWildcardAfter40MicrosoftCSharpTargets Condition="'$(ImportByWildcardAfter40MicrosoftCSharpTargets)' == ''">true</ImportByWildcardAfter40MicrosoftCSharpTargets>
-
-      <ImportUserLocationsByWildcardBefore40MicrosoftCSharpTargets Condition="'$(ImportUserLocationsByWildcardBefore40MicrosoftCSharpTargets)' == ''">$(ImportUserLocationsByWildcardBeforeMicrosoftCSharpTargets)</ImportUserLocationsByWildcardBefore40MicrosoftCSharpTargets>
-      <ImportUserLocationsByWildcardBefore40MicrosoftCSharpTargets Condition="'$(ImportUserLocationsByWildcardBefore40MicrosoftCSharpTargets)' == ''">true</ImportUserLocationsByWildcardBefore40MicrosoftCSharpTargets>
-
-      <ImportUserLocationsByWildcardAfter40MicrosoftCSharpTargets Condition="'$(ImportUserLocationsByWildcardAfter40MicrosoftCSharpTargets)' == ''">$(ImportUserLocationsByWildcardAfterMicrosoftCSharpTargets)</ImportUserLocationsByWildcardAfter40MicrosoftCSharpTargets>
-      <ImportUserLocationsByWildcardAfter40MicrosoftCSharpTargets Condition="'$(ImportUserLocationsByWildcardAfter40MicrosoftCSharpTargets)' == ''">true</ImportUserLocationsByWildcardAfter40MicrosoftCSharpTargets>
-
-      <ImportByWildcardBeforeMicrosoftCSharpTargets>false</ImportByWildcardBeforeMicrosoftCSharpTargets>
-      <ImportByWildcardAfterMicrosoftCSharpTargets>false</ImportByWildcardAfterMicrosoftCSharpTargets>
-      <ImportUserLocationsByWildcardBeforeMicrosoftCSharpTargets>false</ImportUserLocationsByWildcardBeforeMicrosoftCSharpTargets>
-      <ImportUserLocationsByWildcardAfterMicrosoftCSharpTargets>false</ImportUserLocationsByWildcardAfterMicrosoftCSharpTargets>
-
-      <CustomBeforeMicrosoftCSharpTargets Condition="'$(CustomBeforeMicrosoftCSharpTargets)' == ''">$(MSBuildExtensionsPath)\v4.0\Custom.Before.Microsoft.CSharp.targets</CustomBeforeMicrosoftCSharpTargets>
-      <CustomAfterMicrosoftCSharpTargets Condition="'$(CustomAfterMicrosoftCSharpTargets)' == ''">$(MSBuildExtensionsPath)\v4.0\Custom.After.Microsoft.CSharp.targets</CustomAfterMicrosoftCSharpTargets>
-   </PropertyGroup>
-
-   <PropertyGroup Condition="'$(MSBuildAssemblyVersion)' == '' and ('$(TargetFrameworkIdentifier)' == '.NETFramework' or '$(TargetFrameworkIdentifier)' == 'Silverlight' or ('$(TargetFrameworkIdentifier)' == '' and ('$(TargetRuntime)' == 'Managed' or '$(TargetRuntime)' == '')))">
-       <!--
-            Overrides for the Microsoft.NETFramework.props extension targets. Used to make sure that only the imports we specify
-            (hard-coded to 4.0 locations) are used, not the 12.0 locations that would be used by default. Required because
-            Microsoft.Common.targets imports it from the current directory, so we don't get a chance to redirect these in its
-            own redirection targets.
-
-            NOTE: This logic is duplicated in Microsoft.VisualBasic.targets and in Microsoft.Common.targets because VB and C#
-            import Microsoft.Common.targets from the current directory and thus don't get the benefit of these redirections either,
-            so for any changes to this logic in this file, please also edit the other two.
-        -->
-      <ImportByWildcardBefore40MicrosoftNetFrameworkProps Condition="'$(ImportByWildcardBefore40MicrosoftNetFrameworkProps)' == ''">$(ImportByWildcardBeforeMicrosoftNetFrameworkProps)</ImportByWildcardBefore40MicrosoftNetFrameworkProps>
-      <ImportByWildcardBefore40MicrosoftNetFrameworkProps Condition="'$(ImportByWildcardBefore40MicrosoftNetFrameworkProps)' == ''">true</ImportByWildcardBefore40MicrosoftNetFrameworkProps>
-
-      <ImportByWildcardAfter40MicrosoftNetFrameworkProps Condition="'$(ImportByWildcardAfter40MicrosoftNetFrameworkProps)' == ''">$(ImportByWildcardAfterMicrosoftNetFrameworkProps)</ImportByWildcardAfter40MicrosoftNetFrameworkProps>
-      <ImportByWildcardAfter40MicrosoftNetFrameworkProps Condition="'$(ImportByWildcardAfter40MicrosoftNetFrameworkProps)' == ''">true</ImportByWildcardAfter40MicrosoftNetFrameworkProps>
-
-      <ImportUserLocationsByWildcardBefore40MicrosoftNetFrameworkProps Condition="'$(ImportUserLocationsByWildcardBefore40MicrosoftNetFrameworkProps)' == ''">$(ImportUserLocationsByWildcardBeforeMicrosoftNetFrameworkProps)</ImportUserLocationsByWildcardBefore40MicrosoftNetFrameworkProps>
-      <ImportUserLocationsByWildcardBefore40MicrosoftNetFrameworkProps Condition="'$(ImportUserLocationsByWildcardBefore40MicrosoftNetFrameworkProps)' == ''">true</ImportUserLocationsByWildcardBefore40MicrosoftNetFrameworkProps>
-
-      <ImportUserLocationsByWildcardAfter40MicrosoftNetFrameworkProps Condition="'$(ImportUserLocationsByWildcardAfter40MicrosoftNetFrameworkProps)' == ''">$(ImportUserLocationsByWildcardAfterMicrosoftNetFrameworkProps)</ImportUserLocationsByWildcardAfter40MicrosoftNetFrameworkProps>
-      <ImportUserLocationsByWildcardAfter40MicrosoftNetFrameworkProps Condition="'$(ImportUserLocationsByWildcardAfter40MicrosoftNetFrameworkProps)' == ''">true</ImportUserLocationsByWildcardAfter40MicrosoftNetFrameworkProps>
-
-      <ImportByWildcardBeforeMicrosoftNetFrameworkProps>false</ImportByWildcardBeforeMicrosoftNetFrameworkProps>
-      <ImportByWildcardAfterMicrosoftNetFrameworkProps>false</ImportByWildcardAfterMicrosoftNetFrameworkProps>
-      <ImportUserLocationsByWildcardBeforeMicrosoftNetFrameworkProps>false</ImportUserLocationsByWildcardBeforeMicrosoftNetFrameworkProps>
-      <ImportUserLocationsByWildcardAfterMicrosoftNetFrameworkProps>false</ImportUserLocationsByWildcardAfterMicrosoftNetFrameworkProps>
-   </PropertyGroup>
-
-   <ImportGroup Condition="'$(MSBuildAssemblyVersion)' == ''">
-      <Import Project="$(MSBuildUserExtensionsPath)\4.0\Microsoft.CSharp.targets\ImportBefore\*" Condition="'$(ImportUserLocationsByWildcardBefore40MicrosoftCSharpTargets)' == 'true' and exists('$(MSBuildUserExtensionsPath)\4.0\Microsoft.CSharp.targets\ImportBefore')"/>
-      <Import Project="$(MSBuildExtensionsPath)\4.0\Microsoft.CSharp.targets\ImportBefore\*" Condition="'$(ImportByWildcardBefore40MicrosoftCSharpTargets)' == 'true' and exists('$(MSBuildExtensionsPath)\4.0\Microsoft.CSharp.targets\ImportBefore')"/>
-   </ImportGroup>
-
-   <!-- Really should be imported right before Microsoft.Common.targets, but because Microsoft.CSharp.targets imports
-        Microsoft.Common.targets from the current directory rather than using MSBuildToolsPath (which would redirect to our
-        targets), we're stuck doing it this way instead. -->
-   <ImportGroup Condition="'$(MSBuildAssemblyVersion)' == ''">
-      <Import Project="$(MSBuildUserExtensionsPath)\4.0\Microsoft.Common.targets\ImportBefore\*" Condition="'$(ImportUserLocationsByWildcardBefore40MicrosoftCommonTargets)' == 'true' and exists('$(MSBuildUserExtensionsPath)\4.0\Microsoft.Common.targets\ImportBefore')"/>
-      <Import Project="$(MSBuildExtensionsPath)\4.0\Microsoft.Common.targets\ImportBefore\*" Condition="'$(ImportByWildcardBefore40MicrosoftCommonTargets)' == 'true' and exists('$(MSBuildExtensionsPath)\4.0\Microsoft.Common.targets\ImportBefore')"/>
-   </ImportGroup>
-
-   <!-- Really should be imported right before Microsoft.NETFramework.props, but because Microsoft.CSharp.targets imports
-        Microsoft.Common.targets from the current directory rather than using MSBuildToolsPath (which would redirect to our
-        targets), and Microsoft.Common.targets does likewise with Microsoft.NETFramework.props, we're stuck doing it this
-        way instead. -->
-   <ImportGroup Condition="'$(MSBuildAssemblyVersion)' == ''">
-      <Import Project="$(MSBuildUserExtensionsPath)\4.0\Microsoft.NETFramework.props\ImportBefore\*" Condition="'$(ImportUserLocationsByWildcardBefore40MicrosoftNetFrameworkProps)' == 'true' and exists('$(MSBuildUserExtensionsPath)\4.0\Microsoft.NETFramework.props\ImportBefore')"/>
-      <Import Project="$(MSBuildExtensionsPath)\4.0\Microsoft.NETFramework.props\ImportBefore\*" Condition="'$(ImportByWildcardBefore40MicrosoftNetFrameworkProps)' == 'true' and exists('$(MSBuildExtensionsPath)\4.0\Microsoft.NETFramework.props\ImportBefore')"/>
-   </ImportGroup>
-
    <Import Project="$(MSBuildToolsPath)\Microsoft.Managed.Before.targets" />
 
    <Import Project="$(CSharpTargetsPath)" />
 
    <Import Project="$(MSBuildToolsPath)\Microsoft.Managed.After.targets" />
 
-   <!-- Really should be imported right after Microsoft.NETFramework.props, but because Microsoft.CSharp.targets imports
-        Microsoft.Common.targets from the current directory rather than using MSBuildToolsPath (which would redirect to our
-        targets), and Microsoft.Common.targets does likewise with Microsoft.NETFramework.props, we're stuck doing it this
-        way instead. -->
-   <ImportGroup Condition="'$(MSBuildAssemblyVersion)' == ''">
-      <Import Project="$(MSBuildExtensionsPath)\4.0\Microsoft.NETFramework.props\ImportAfter\*" Condition="'$(ImportByWildcardAfter40MicrosoftNetFrameworkProps)' == 'true' and exists('$(MSBuildExtensionsPath)\4.0\Microsoft.NETFramework.props\ImportAfter')"/>
-      <Import Project="$(MSBuildUserExtensionsPath)\4.0\Microsoft.NETFramework.props\ImportAfter\*" Condition="'$(ImportUserLocationsByWildcardAfter40MicrosoftNetFrameworkProps)' == 'true' and exists('$(MSBuildUserExtensionsPath)\4.0\Microsoft.NETFramework.props\ImportAfter')"/>
-   </ImportGroup>
-
-   <!-- Really should be imported right after Microsoft.Common.targets, but because Microsoft.CSharp.targets imports
-        Microsoft.Common.targets from the current directory rather than using MSBuildToolsPath (which would redirect to our
-        targets), we're stuck doing it this way instead. -->
-   <ImportGroup Condition="'$(MSBuildAssemblyVersion)' == ''">
-      <Import Project="$(MSBuildExtensionsPath)\4.0\Microsoft.Common.targets\ImportAfter\*" Condition="'$(ImportByWildcardAfter40MicrosoftCommonTargets)' == 'true' and exists('$(MSBuildExtensionsPath)\4.0\Microsoft.Common.targets\ImportAfter')"/>
-      <Import Project="$(MSBuildUserExtensionsPath)\4.0\Microsoft.Common.targets\ImportAfter\*" Condition="'$(ImportUserLocationsByWildcardAfter40MicrosoftCommonTargets)' == 'true' and exists('$(MSBuildUserExtensionsPath)\4.0\Microsoft.Common.targets\ImportAfter')"/>
-    </ImportGroup>
-
-   <ImportGroup Condition="'$(MSBuildAssemblyVersion)' == ''">
-      <Import Project="$(MSBuildExtensionsPath)\4.0\Microsoft.CSharp.targets\ImportAfter\*" Condition="'$(ImportByWildcardAfter40MicrosoftCSharpTargets)' == 'true' and exists('$(MSBuildExtensionsPath)\4.0\Microsoft.CSharp.targets\ImportAfter')"/>
-      <Import Project="$(MSBuildUserExtensionsPath)\4.0\Microsoft.CSharp.targets\ImportAfter\*" Condition="'$(ImportUserLocationsByWildcardAfter40MicrosoftCSharpTargets)' == 'true' and exists('$(MSBuildUserExtensionsPath)\4.0\Microsoft.CSharp.targets\ImportAfter')"/>
-   </ImportGroup>
-
-   <!-- Fix up FrameworkPathOverride, which is primarily used to determine the location of mscorlib.dll in the
-        (relatively uncommon) situation where the reference assemblies, in which it's usually found, are not
-        installed.  Defined here rather than in Microsoft.Common.targets because the .NET Microsoft.CSharp.targets
-        imports Microsoft.Common.targets from the current directory. -->
-   <PropertyGroup Condition="'$(MSBuildAssemblyVersion)' == ''">
-      <FrameworkPathOverride Condition="!Exists('$(FrameworkPathOverride)\mscorlib.dll')">$(MSBuildFrameworkToolsPath)</FrameworkPathOverride>
-   </PropertyGroup>
-
 </Project>
diff --git a/src/Tasks/Microsoft.Common.props b/src/Tasks/Microsoft.Common.props
index b08b6558352..4b20447abdf 100644
--- a/src/Tasks/Microsoft.Common.props
+++ b/src/Tasks/Microsoft.Common.props
@@ -63,72 +63,21 @@ Copyright (C) Microsoft Corporation. All rights reserved.
   <Import Project="$(MSBuildProjectExtensionsPath)$(MSBuildProjectFile).*.props" Condition="'$(ImportProjectExtensionProps)' == 'true' and exists('$(MSBuildProjectExtensionsPath)')" />
 
   <!--
-        Import wildcard "ImportBefore" props files if we're actually in a 12.0+ project (rather than a project being
-        treated as 4.0)
+          Wildcard imports come from $(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Imports\Microsoft.Common.props\ directory.
+          This is very similar to the same extension point used in Microsoft.Common.targets, which is located in
+          the $(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.targets\ directory.
+          Unfortunately, there is already a file named "Microsoft.Common.props" in this directory,
+          so we have to have a slightly different directory name to hold extensions.
     -->
-  <ImportGroup Condition="'$(MSBuildAssemblyVersion)' != ''">
-    <!--
-            Wildcard imports come from $(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props.d folder.
-            This is very similar to the same extension point used in Microsoft.Common.targets, which is located in
-            the $(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.targets\ directory. Unfortunately, there
-            is already a file named "Microsoft.Common.props" in this directory so we have to have a slightly different
-            directory name to hold extensions.
-        -->
-    <Import Project="$(MSBuildUserExtensionsPath)\$(MSBuildToolsVersion)\Imports\Microsoft.Common.props\ImportBefore\*" Condition="'$(ImportUserLocationsByWildcardBeforeMicrosoftCommonProps)' == 'true' and exists('$(MSBuildUserExtensionsPath)\$(MSBuildToolsVersion)\Imports\Microsoft.Common.props\ImportBefore')"/>
-    <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Imports\Microsoft.Common.props\ImportBefore\*" Condition="'$(ImportByWildcardBeforeMicrosoftCommonProps)' == 'true' and exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Imports\Microsoft.Common.props\ImportBefore')"/>
-  </ImportGroup>
-
-  <!--
-        In VS 2010 SP1 and VS 2012, both supported for asset compatibility, the MSBuild installed
-        as part of them did not enforce using the local ToolsVersion (4.0) in all cases, but instead
-        just used whatever ToolsVersion was in the project file if it existed on the machine, and
-        only forced 4.0 if that ToolsVersion did not exist.
-
-        Moving forward, we do want to enforce a single acting ToolsVersion per version of Visual Studio,
-        but in order to approximate this behavior on VS 2010 SP1 and VS 2012 as well, we've redirected
-        the targets:  If we're building using 4.X MSBuild (which doesn't define the new reserved
-        property, MSBuildAssemblyVersion), we'll point right back at the 4.0 targets, which still exist
-        as part of the .NET Framework.  Only if we're using the new MSBuild will we point to the current
-        targets.
-   -->
-  <PropertyGroup Condition="'$(MSBuildAssemblyVersion)' == '' and ('$(VisualStudioVersion)' != '' and '$(VisualStudioVersion)' &gt;= '12.0')">
-    <!--
-           Reset VisualStudioVersion if it's 12.0+: Should be 10.0 if VS 2010 is installed or 11.0 otherwise,
-           but since we don't have a good way of telling whether VS 2010 is installed, make it 11.0 if
-           VS 2012 is installed or 10.0 otherwise.  The reset should be safe because if it was already
-           set to something (e.g. 11.0 in a VS 2012 command prompt) then MSBuild's internal
-           VisualStudioVersion-defaulting code should never come into the picture, so the only way it could
-           be 12.0+ when building a TV 12.0 project (because we're in this file) using MSBuild 4.5 (because
-           MSBuildAssemblyVersion hasn't been set) is if it's a TV 12.0 project on an empty command prompt.
-      -->
-    <VisualStudioVersion Condition="Exists('$(MSBuildExtensionsPath)\4.0\Microsoft.Common.props')">11.0</VisualStudioVersion>
-    <VisualStudioVersion Condition="!Exists('$(MSBuildExtensionsPath)\4.0\Microsoft.Common.props')">10.0</VisualStudioVersion>
-  </PropertyGroup>
-
-  <!-- If building using 4.X MSBuild, we want to act like this project is TV 4.0, so override
-         the custom extensibility target locations with the hard-coded 4.0 equivalent. -->
-  <PropertyGroup Condition="'$(MSBuildAssemblyVersion)' == ''">
-    <CustomBeforeMicrosoftCommonProps Condition="'$(CustomBeforeMicrosoftCommonProps)'==''">$(MSBuildExtensionsPath)\v4.0\Custom.Before.$(MSBuildThisFile)</CustomBeforeMicrosoftCommonProps>
-    <CustomAfterMicrosoftCommonProps Condition="'$(CustomAfterMicrosoftCommonProps)'==''">$(MSBuildExtensionsPath)\v4.0\Custom.After.$(MSBuildThisFile)</CustomAfterMicrosoftCommonProps>
-  </PropertyGroup>
-
-  <!-- If building using 4.X MSBuild, we want to act like this project is TV 4.0, so import
-         Microsoft.Common.props from the 4.0 location, and make sure everything else in here is
-         set up such that if it's defaulted to something there, it won't be overridden here. -->
-  <Import Project="$(MSBuildExtensionsPath)\4.0\Microsoft.Common.props" Condition="'$(MSBuildAssemblyVersion)' == '' and Exists('$(MSBuildExtensionsPath)\4.0\Microsoft.Common.props')" />
+  <Import Project="$(MSBuildUserExtensionsPath)\$(MSBuildToolsVersion)\Imports\Microsoft.Common.props\ImportBefore\*" Condition="'$(ImportUserLocationsByWildcardBeforeMicrosoftCommonProps)' == 'true' and exists('$(MSBuildUserExtensionsPath)\$(MSBuildToolsVersion)\Imports\Microsoft.Common.props\ImportBefore')"/>
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Imports\Microsoft.Common.props\ImportBefore\*" Condition="'$(ImportByWildcardBeforeMicrosoftCommonProps)' == 'true' and exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Imports\Microsoft.Common.props\ImportBefore')"/>
 
   <PropertyGroup>
     <CustomBeforeMicrosoftCommonProps Condition="'$(CustomBeforeMicrosoftCommonProps)'==''">$(MSBuildExtensionsPath)\v$(MSBuildToolsVersion)\Custom.Before.$(MSBuildThisFile)</CustomBeforeMicrosoftCommonProps>
     <CustomAfterMicrosoftCommonProps Condition="'$(CustomAfterMicrosoftCommonProps)'==''">$(MSBuildExtensionsPath)\v$(MSBuildToolsVersion)\Custom.After.$(MSBuildThisFile)</CustomAfterMicrosoftCommonProps>
   </PropertyGroup>
 
-  <!--
-         Only import the extension targets if we're actually in a 12.0 project here (rather than one we're attempting
-         to treat as 4.0) OR if the Dev11 Microsoft.Common.props don't exist.  If it's a 12.0 project we're redirecting
-         to 4.0 and the Dev11 Microsoft.Common.props do exist, the extension targets will have been imported already
-         so there's no need to import them twice.
-     -->
-  <Import Project="$(CustomBeforeMicrosoftCommonProps)" Condition="'$(CustomBeforeMicrosoftCommonProps)' != '' and Exists('$(CustomBeforeMicrosoftCommonProps)') and ('$(MSBuildAssemblyVersion)' != '' or !Exists('$(MSBuildExtensionsPath)\4.0\Microsoft.Common.props'))" />
+  <Import Project="$(CustomBeforeMicrosoftCommonProps)" Condition="'$(CustomBeforeMicrosoftCommonProps)' != '' and Exists('$(CustomBeforeMicrosoftCommonProps)')" />
 
   <!-- This is used to determine whether Microsoft.Common.targets needs to import
          Microsoft.Common.props itself, or whether it has been imported previously,
@@ -149,22 +98,10 @@ Copyright (C) Microsoft Corporation. All rights reserved.
 
   <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.VisualStudioVersion.v*.Common.props" Condition="'$(VisualStudioVersion)' == ''" />
 
-  <!--
-         Only import the extension targets if we're actually in a 12.0 project here (rather than one we're attempting
-         to treat as 4.0) OR if the Dev11 Microsoft.Common.props don't exist.  If it's a 12.0 project we're redirecting
-         to 4.0 and the Dev11 Microsoft.Common.props do exist, the extension targets will have been imported already
-         so there's no need to import them twice.
-     -->
-  <Import Project="$(CustomAfterMicrosoftCommonProps)" Condition="'$(CustomAfterMicrosoftCommonProps)' != '' and Exists('$(CustomAfterMicrosoftCommonProps)') and ('$(MSBuildAssemblyVersion)' != '' or !Exists('$(MSBuildExtensionsPath)\4.0\Microsoft.Common.props'))" />
+  <Import Project="$(CustomAfterMicrosoftCommonProps)" Condition="'$(CustomAfterMicrosoftCommonProps)' != '' and Exists('$(CustomAfterMicrosoftCommonProps)')" />
 
-  <!--
-        Import wildcard "ImportAfter" props files if we're actually in a 12.0+ project (rather than a project being
-        treated as 4.0)
-    -->
-  <ImportGroup Condition="'$(MSBuildAssemblyVersion)' != ''">
-    <Import Project="$(MSBuildUserExtensionsPath)\$(MSBuildToolsVersion)\Imports\Microsoft.Common.props\ImportAfter\*" Condition="'$(ImportUserLocationsByWildcardAfterMicrosoftCommonProps)' == 'true' and exists('$(MSBuildUserExtensionsPath)\$(MSBuildToolsVersion)\Imports\Microsoft.Common.props\ImportAfter')"/>
-    <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Imports\Microsoft.Common.props\ImportAfter\*" Condition="'$(ImportByWildcardAfterMicrosoftCommonProps)' == 'true' and exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Imports\Microsoft.Common.props\ImportAfter')"/>
-  </ImportGroup>
+  <Import Project="$(MSBuildUserExtensionsPath)\$(MSBuildToolsVersion)\Imports\Microsoft.Common.props\ImportAfter\*" Condition="'$(ImportUserLocationsByWildcardAfterMicrosoftCommonProps)' == 'true' and exists('$(MSBuildUserExtensionsPath)\$(MSBuildToolsVersion)\Imports\Microsoft.Common.props\ImportAfter')"/>
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Imports\Microsoft.Common.props\ImportAfter\*" Condition="'$(ImportByWildcardAfterMicrosoftCommonProps)' == 'true' and exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Imports\Microsoft.Common.props\ImportAfter')"/>
 
   <!--
         Import NuGet.props file.
diff --git a/src/Tasks/Microsoft.Common.targets b/src/Tasks/Microsoft.Common.targets
index 753dad7cfaf..ff31db3c66e 100644
--- a/src/Tasks/Microsoft.Common.targets
+++ b/src/Tasks/Microsoft.Common.targets
@@ -16,102 +16,9 @@ Copyright (C) Microsoft Corporation. All rights reserved.
 
 <Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
 
-  <!--
-       In VS 2010 SP1 and VS 2012, both supported for asset compatibility, the MSBuild installed
-       as part of them did not enforce using the local ToolsVersion (4.0) in all cases, but instead
-       just used whatever ToolsVersion was in the project file if it existed on the machine, and
-       only forced 4.0 if that ToolsVersion did not exist.
-
-       Moving forward, we do want to enforce a single acting ToolsVersion per version of Visual Studio,
-       but in order to approximate this behavior on VS 2010 SP1 and VS 2012 as well, we've redirected
-       the targets:  If we're building using 4.X MSBuild (which doesn't define the new reserved
-       property, MSBuildAssemblyVersion), we'll point right back at the 4.0 targets, which still exist
-       as part of the .NET Framework.  Only if we're using the new MSBuild will we point to the current
-       targets.
-   -->
-
-  <Choose>
-    <When Condition="'$(MSBuildAssemblyVersion)' == ''">
-      <PropertyGroup>
-        <CommonTargetsPath>$(MSBuildFrameworkToolsPath)\Microsoft.Common.targets</CommonTargetsPath>
-      </PropertyGroup>
-    </When>
-    <Otherwise>
-      <PropertyGroup>
-        <CommonTargetsPath>$(MSBuildToolsPath)\Microsoft.Common.CurrentVersion.targets</CommonTargetsPath>
-      </PropertyGroup>
-    </Otherwise>
-  </Choose>
-
-  <PropertyGroup Condition="'$(MSBuildAssemblyVersion)' == ''">
-     <!--
-          Overrides for the Microsoft.Common.targets extension targets. Used to make sure that only the imports we specify
-          (hard-coded to 4.0 locations) are used, not the 12.0 locations that would be used by default.
-
-          NOTE: This logic is duplicated in Microsoft.VisualBasic.targets and in Microsoft.CSharp.targets because those two files
-          import Microsoft.Common.targets from the current directory and thus don't get the benefit of the redirections, so for
-          any changes to this logic in this file, please also edit the other two.
-      -->
-    <ImportByWildcardBefore40MicrosoftCommonTargets Condition="'$(ImportByWildcardBefore40MicrosoftCommonTargets)' == ''">$(ImportByWildcardBeforeMicrosoftCommonTargets)</ImportByWildcardBefore40MicrosoftCommonTargets>
-    <ImportByWildcardBefore40MicrosoftCommonTargets Condition="'$(ImportByWildcardBefore40MicrosoftCommonTargets)' == ''">true</ImportByWildcardBefore40MicrosoftCommonTargets>
-
-    <ImportByWildcardAfter40MicrosoftCommonTargets Condition="'$(ImportByWildcardAfter40MicrosoftCommonTargets)' == ''">$(ImportByWildcardAfterMicrosoftCommonTargets)</ImportByWildcardAfter40MicrosoftCommonTargets>
-    <ImportByWildcardAfter40MicrosoftCommonTargets Condition="'$(ImportByWildcardAfter40MicrosoftCommonTargets)' == ''">true</ImportByWildcardAfter40MicrosoftCommonTargets>
-
-    <ImportUserLocationsByWildcardBefore40MicrosoftCommonTargets Condition="'$(ImportUserLocationsByWildcardBefore40MicrosoftCommonTargets)' == ''">$(ImportUserLocationsByWildcardBeforeMicrosoftCommonTargets)</ImportUserLocationsByWildcardBefore40MicrosoftCommonTargets>
-    <ImportUserLocationsByWildcardBefore40MicrosoftCommonTargets Condition="'$(ImportUserLocationsByWildcardBefore40MicrosoftCommonTargets)' == ''">true</ImportUserLocationsByWildcardBefore40MicrosoftCommonTargets>
-
-    <ImportUserLocationsByWildcardAfter40MicrosoftCommonTargets Condition="'$(ImportUserLocationsByWildcardAfter40MicrosoftCommonTargets)' == ''">$(ImportUserLocationsByWildcardAfterMicrosoftCommonTargets)</ImportUserLocationsByWildcardAfter40MicrosoftCommonTargets>
-    <ImportUserLocationsByWildcardAfter40MicrosoftCommonTargets Condition="'$(ImportUserLocationsByWildcardAfter40MicrosoftCommonTargets)' == ''">true</ImportUserLocationsByWildcardAfter40MicrosoftCommonTargets>
-
-    <ImportByWildcardBeforeMicrosoftCommonTargets>false</ImportByWildcardBeforeMicrosoftCommonTargets>
-    <ImportByWildcardAfterMicrosoftCommonTargets>false</ImportByWildcardAfterMicrosoftCommonTargets>
-    <ImportUserLocationsByWildcardBeforeMicrosoftCommonTargets>false</ImportUserLocationsByWildcardBeforeMicrosoftCommonTargets>
-    <ImportUserLocationsByWildcardAfterMicrosoftCommonTargets>false</ImportUserLocationsByWildcardAfterMicrosoftCommonTargets>
-
-    <CustomBeforeMicrosoftCommonTargets Condition="'$(CustomBeforeMicrosoftCommonTargets)' == ''">$(MSBuildExtensionsPath)\v4.0\Custom.Before.Microsoft.Common.targets</CustomBeforeMicrosoftCommonTargets>
-    <CustomAfterMicrosoftCommonTargets Condition="'$(CustomAfterMicrosoftCommonTargets)' == ''">$(MSBuildExtensionsPath)\v4.0\Custom.After.Microsoft.Common.targets</CustomAfterMicrosoftCommonTargets>
-  </PropertyGroup>
-
-  <PropertyGroup Condition="'$(MSBuildAssemblyVersion)' == '' and ('$(TargetFrameworkIdentifier)' == '.NETFramework' or '$(TargetFrameworkIdentifier)' == 'Silverlight' or ('$(TargetFrameworkIdentifier)' == '' and ('$(TargetRuntime)' == 'Managed' or '$(TargetRuntime)' == '')))">
-     <!--
-          Overrides for the Microsoft.NETFramework.props extension targets. Used to make sure that only the imports we specify
-          (hard-coded to 4.0 locations) are used, not the 12.0 locations that would be used by default. Required because
-          Microsoft.Common.targets imports it from the current directory, so we don't get a chance to redirect these in its
-          own redirection targets.
-
-          NOTE: This logic is duplicated in Microsoft.VisualBasic.targets and in Microsoft.CSharp.targets because those two files
-          import Microsoft.Common.targets from the current directory and thus don't get the benefit of these redirections either,
-          so for any changes to this logic in this file, please also edit the other two.
-      -->
-    <ImportByWildcardBefore40MicrosoftNetFrameworkProps Condition="'$(ImportByWildcardBefore40MicrosoftNetFrameworkProps)' == ''">$(ImportByWildcardBeforeMicrosoftNetFrameworkProps)</ImportByWildcardBefore40MicrosoftNetFrameworkProps>
-    <ImportByWildcardBefore40MicrosoftNetFrameworkProps Condition="'$(ImportByWildcardBefore40MicrosoftNetFrameworkProps)' == ''">true</ImportByWildcardBefore40MicrosoftNetFrameworkProps>
-
-    <ImportByWildcardAfter40MicrosoftNetFrameworkProps Condition="'$(ImportByWildcardAfter40MicrosoftNetFrameworkProps)' == ''">$(ImportByWildcardAfterMicrosoftNetFrameworkProps)</ImportByWildcardAfter40MicrosoftNetFrameworkProps>
-    <ImportByWildcardAfter40MicrosoftNetFrameworkProps Condition="'$(ImportByWildcardAfter40MicrosoftNetFrameworkProps)' == ''">true</ImportByWildcardAfter40MicrosoftNetFrameworkProps>
-
-    <ImportUserLocationsByWildcardBefore40MicrosoftNetFrameworkProps Condition="'$(ImportUserLocationsByWildcardBefore40MicrosoftNetFrameworkProps)' == ''">$(ImportUserLocationsByWildcardBeforeMicrosoftNetFrameworkProps)</ImportUserLocationsByWildcardBefore40MicrosoftNetFrameworkProps>
-    <ImportUserLocationsByWildcardBefore40MicrosoftNetFrameworkProps Condition="'$(ImportUserLocationsByWildcardBefore40MicrosoftNetFrameworkProps)' == ''">true</ImportUserLocationsByWildcardBefore40MicrosoftNetFrameworkProps>
-
-    <ImportUserLocationsByWildcardAfter40MicrosoftNetFrameworkProps Condition="'$(ImportUserLocationsByWildcardAfter40MicrosoftNetFrameworkProps)' == ''">$(ImportUserLocationsByWildcardAfterMicrosoftNetFrameworkProps)</ImportUserLocationsByWildcardAfter40MicrosoftNetFrameworkProps>
-    <ImportUserLocationsByWildcardAfter40MicrosoftNetFrameworkProps Condition="'$(ImportUserLocationsByWildcardAfter40MicrosoftNetFrameworkProps)' == ''">true</ImportUserLocationsByWildcardAfter40MicrosoftNetFrameworkProps>
-
-    <ImportByWildcardBeforeMicrosoftNetFrameworkProps>false</ImportByWildcardBeforeMicrosoftNetFrameworkProps>
-    <ImportByWildcardAfterMicrosoftNetFrameworkProps>false</ImportByWildcardAfterMicrosoftNetFrameworkProps>
-    <ImportUserLocationsByWildcardBeforeMicrosoftNetFrameworkProps>false</ImportUserLocationsByWildcardBeforeMicrosoftNetFrameworkProps>
-    <ImportUserLocationsByWildcardAfterMicrosoftNetFrameworkProps>false</ImportUserLocationsByWildcardAfterMicrosoftNetFrameworkProps>
+  <PropertyGroup>
+    <CommonTargetsPath>$(MSBuildToolsPath)\Microsoft.Common.CurrentVersion.targets</CommonTargetsPath>
   </PropertyGroup>
-
-  <ImportGroup Condition="'$(MSBuildAssemblyVersion)' == ''">
-    <Import Project="$(MSBuildUserExtensionsPath)\4.0\Microsoft.Common.targets\ImportBefore\*" Condition="'$(ImportUserLocationsByWildcardBefore40MicrosoftCommonTargets)' == 'true' and exists('$(MSBuildUserExtensionsPath)\4.0\Microsoft.Common.targets\ImportBefore')"/>
-    <Import Project="$(MSBuildExtensionsPath)\4.0\Microsoft.Common.targets\ImportBefore\*" Condition="'$(ImportByWildcardBefore40MicrosoftCommonTargets)' == 'true' and exists('$(MSBuildExtensionsPath)\4.0\Microsoft.Common.targets\ImportBefore')"/>
-  </ImportGroup>
-
-  <ImportGroup Condition="'$(MSBuildAssemblyVersion)' == ''">
-    <Import Project="$(MSBuildUserExtensionsPath)\4.0\Microsoft.NETFramework.props\ImportBefore\*" Condition="'$(ImportUserLocationsByWildcardBefore40MicrosoftNetFrameworkProps)' == 'true' and exists('$(MSBuildUserExtensionsPath)\4.0\Microsoft.NETFramework.props\ImportBefore')"/>
-    <Import Project="$(MSBuildExtensionsPath)\4.0\Microsoft.NETFramework.props\ImportBefore\*" Condition="'$(ImportByWildcardBefore40MicrosoftNetFrameworkProps)' == 'true' and exists('$(MSBuildExtensionsPath)\4.0\Microsoft.NETFramework.props\ImportBefore')"/>
-  </ImportGroup>
-
   <Import Project="$(CommonTargetsPath)" />
 
   <!--
@@ -143,21 +50,4 @@ Copyright (C) Microsoft Corporation. All rights reserved.
 
   <Import Project="$(DirectoryBuildTargetsPath)" Condition="'$(ImportDirectoryBuildTargets)' == 'true' and exists('$(DirectoryBuildTargetsPath)')"/>
 
-  <ImportGroup Condition="'$(MSBuildAssemblyVersion)' == ''">
-    <Import Project="$(MSBuildExtensionsPath)\4.0\Microsoft.NETFramework.props\ImportAfter\*" Condition="'$(ImportByWildcardAfter40MicrosoftNetFrameworkProps)' == 'true' and exists('$(MSBuildExtensionsPath)\4.0\Microsoft.NETFramework.props\ImportAfter')"/>
-    <Import Project="$(MSBuildUserExtensionsPath)\4.0\Microsoft.NETFramework.props\ImportAfter\*" Condition="'$(ImportUserLocationsByWildcardAfter40MicrosoftNetFrameworkProps)' == 'true' and exists('$(MSBuildUserExtensionsPath)\4.0\Microsoft.NETFramework.props\ImportAfter')"/>
-  </ImportGroup>
-
-  <ImportGroup Condition="'$(MSBuildAssemblyVersion)' == ''">
-    <Import Project="$(MSBuildExtensionsPath)\4.0\Microsoft.Common.targets\ImportAfter\*" Condition="'$(ImportByWildcardAfter40MicrosoftCommonTargets)' == 'true' and exists('$(MSBuildExtensionsPath)\4.0\Microsoft.Common.targets\ImportAfter')"/>
-    <Import Project="$(MSBuildUserExtensionsPath)\4.0\Microsoft.Common.targets\ImportAfter\*" Condition="'$(ImportUserLocationsByWildcardAfter40MicrosoftCommonTargets)' == 'true' and exists('$(MSBuildUserExtensionsPath)\4.0\Microsoft.Common.targets\ImportAfter')"/>
-  </ImportGroup>
-
-   <!-- Fix up FrameworkPathOverride, which is primarily used to determine the location of mscorlib.dll in the
-        (relatively uncommon) situation where the reference assemblies, in which it's usually found, are not
-        installed.  -->
-   <PropertyGroup Condition="'$(MSBuildAssemblyVersion)' == ''">
-      <FrameworkPathOverride Condition="!Exists('$(FrameworkPathOverride)\mscorlib.dll')">$(MSBuildFrameworkToolsPath)</FrameworkPathOverride>
-   </PropertyGroup>
-
 </Project>
diff --git a/src/Tasks/Microsoft.Common.tasks b/src/Tasks/Microsoft.Common.tasks
index f909cc1afe2..ec7d33ea7cf 100644
--- a/src/Tasks/Microsoft.Common.tasks
+++ b/src/Tasks/Microsoft.Common.tasks
@@ -7,182 +7,102 @@
                is encountered, it will cause the task to be rediscovered next time the task is used. -->
     <!-- NOTE: Using the fully qualified class name in a <UsingTask> tag is faster than using a partially qualified name. -->
 
-    <!-- Versions required for SxS back-compat with Dev10 SP1 / Dev11 and ToolsVersion=12.0 projects -->
-
-    <UsingTask TaskName="Microsoft.Build.Tasks.AL"                                    AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.AspNetCompiler"                        AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.AssignCulture"                         AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.AssignProjectConfiguration"            AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.AssignTargetPath"                      AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.CallTarget"                            AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.CombinePath"                           AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.ConvertToAbsolutePath"                 AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.Copy"                                  AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.CreateCSharpManifestResourceName"      AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.CreateItem"                            AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.CreateProperty"                        AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.CreateVisualBasicManifestResourceName" AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.Csc"                                   AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.Delete"                                AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.Error"                                 AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.Exec"                                  AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.FindAppConfigFile"                     AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.FindInList"                            AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.FindUnderPath"                         AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.FormatUrl"                             AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.FormatVersion"                         AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.GenerateApplicationManifest"           AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.GenerateBootstrapper"                  AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.GenerateDeploymentManifest"            AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-
-    <UsingTask TaskName="Microsoft.Build.Tasks.GenerateResource"                      AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="('$(MSBuildAssemblyVersion)' == '') and '$(DisableOutOfProcTaskHost)' != ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.GenerateResource"                      AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Runtime="CLR4" Condition="('$(MSBuildAssemblyVersion)' == '') and '$(DisableOutOfProcTaskHost)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.GenerateResource"                      AssemblyName="Microsoft.Build.Tasks.v3.5, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Runtime="CLR2" Condition="('$(MSBuildAssemblyVersion)' == '') and '$(DisableOutOfProcTaskHost)' == ''" />
-
-    <UsingTask TaskName="Microsoft.Build.Tasks.GenerateTrustInfo"                     AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.GetAssemblyIdentity"                   AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.GetFrameworkPath"                      AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.GetFrameworkSdkPath"                   AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.GetReferenceAssemblyPaths"             AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.LC"                                    AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.MakeDir"                               AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.Message"                               AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.Move"                                  AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.MSBuild"                               AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.ReadLinesFromFile"                     AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-
-    <UsingTask TaskName="Microsoft.Build.Tasks.RegisterAssembly"                      AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="('$(MSBuildAssemblyVersion)' == '') and '$(DisableOutOfProcTaskHost)' != ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.RegisterAssembly"                      AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Runtime="CLR4" Condition="('$(MSBuildAssemblyVersion)' == '') and '$(DisableOutOfProcTaskHost)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.RegisterAssembly"                      AssemblyName="Microsoft.Build.Tasks.v3.5, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Runtime="CLR2" Condition="('$(MSBuildAssemblyVersion)' == '') and '$(DisableOutOfProcTaskHost)' == ''" />
-
-    <UsingTask TaskName="Microsoft.Build.Tasks.RemoveDir"                             AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.RemoveDuplicates"                      AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.RequiresFramework35SP1Assembly"        AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.ResolveAssemblyReference"              AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.ResolveSDKReference"                   AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.GetInstalledSDKLocations"              AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.GetSDKReferenceFiles"                  AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.ResolveComReference"                   AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.ResolveKeySource"                      AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.ResolveManifestFiles"                  AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.ResolveNativeReference"                AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.ResolveNonMSBuildProjectOutput"        AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.SGen"                                  AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.SignFile"                              AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.Touch"                                 AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-
-    <UsingTask TaskName="Microsoft.Build.Tasks.UnregisterAssembly"                    AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="('$(MSBuildAssemblyVersion)' == '') and '$(DisableOutOfProcTaskHost)' != ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.UnregisterAssembly"                    AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Runtime="CLR4" Condition="('$(MSBuildAssemblyVersion)' == '') and '$(DisableOutOfProcTaskHost)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.UnregisterAssembly"                    AssemblyName="Microsoft.Build.Tasks.v3.5, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Runtime="CLR2" Condition="('$(MSBuildAssemblyVersion)' == '') and '$(DisableOutOfProcTaskHost)' == ''" />
-
-    <UsingTask TaskName="Microsoft.Build.Tasks.UpdateManifest"                        AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.Vbc"                                   AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.Warning"                               AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.WriteCodeFragment"                     AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.WriteLinesToFile"                      AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.XmlPeek"                               AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.XmlPoke"                               AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.XslTransformation"                     AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-    <UsingTask TaskName="Microsoft.Build.Tasks.WinMDExp"                              AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(MSBuildAssemblyVersion)' == ''" />
-
-    <!-- Actual 12.0 tasks -->
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+    <UsingTask TaskName="Microsoft.Build.Tasks.Exec"                                  AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.FindAppConfigFile"                     AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.FindInList"                            AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.FindInvalidProjectReferences"          AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+
+    <UsingTask TaskName="Microsoft.Build.Tasks.FindUnderPath"                         AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.FormatUrl"                             AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.FormatVersion"                         AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.GenerateApplicationManifest"           AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.GenerateBindingRedirects"              AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.GenerateBootstrapper"                  AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.GenerateDeploymentManifest"            AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.GenerateLauncher"                      AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+
+    <UsingTask TaskName="Microsoft.Build.Tasks.GenerateResource"                      AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(DisableOutOfProcTaskHost)' != ''" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.GenerateResource"                      AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Runtime="CLR4" Condition="'$(DisableOutOfProcTaskHost)' == '' and '$(MSBuildRuntimeType)' != 'Core'" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.GenerateResource"                      AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Runtime="NET" Condition="'$(DisableOutOfProcTaskHost)' == '' and '$(MSBuildRuntimeType)' == 'Core'" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.GenerateResource"                      AssemblyName="Microsoft.Build.Tasks.v3.5, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Runtime="CLR2" Condition="'$(DisableOutOfProcTaskHost)' == ''  and '$(MSBuildRuntimeType)' != 'Core'" />
+
+    <UsingTask TaskName="Microsoft.Build.Tasks.GenerateTrustInfo"                     AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.GetAssemblyIdentity"                   AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.GetCompatiblePlatform"                 AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.GetFileHash"                           AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.GetFrameworkPath"                      AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.GetFrameworkSdkPath"                   AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.GetReferenceAssemblyPaths"             AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.Hash"                                  AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.LC"                                    AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.MakeDir"                               AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.Message"                               AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.Move"                                  AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.MSBuild"                               AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.ReadLinesFromFile"                     AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+
+    <UsingTask TaskName="Microsoft.Build.Tasks.RegisterAssembly"                      AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(DisableOutOfProcTaskHost)' != ''" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.RegisterAssembly"                      AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Runtime="CLR4" Condition="'$(DisableOutOfProcTaskHost)' == '' and '$(MSBuildRuntimeType)' != 'Core'" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.RegisterAssembly"                      AssemblyName="Microsoft.Build.Tasks.v3.5, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Runtime="CLR2" Condition="'$(DisableOutOfProcTaskHost)' == '' and '$(MSBuildRuntimeType)' != 'Core'" />
+
+    <UsingTask TaskName="Microsoft.Build.Tasks.RemoveDir"                             AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.RemoveDuplicates"                      AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.RequiresFramework35SP1Assembly"        AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.ResolveAssemblyReference"              AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.ResolveCodeAnalysisRuleSet"            AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.ResolveSDKReference"                   AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.ResolveSDKReference"                   AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.GetInstalledSDKLocations"              AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.GetSDKReferenceFiles"                  AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.ResolveComReference"                   AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.ResolveKeySource"                      AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.ResolveManifestFiles"                  AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.ResolveNativeReference"                AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.ResolveNonMSBuildProjectOutput"        AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.SGen"                                  AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.SignFile"                              AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.Telemetry"                             AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.Touch"                                 AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+
+    <UsingTask TaskName="Microsoft.Build.Tasks.UnregisterAssembly"                    AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Condition="'$(DisableOutOfProcTaskHost)' != ''" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.UnregisterAssembly"                    AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Runtime="CLR4" Condition="'$(DisableOutOfProcTaskHost)' == '' and '$(MSBuildRuntimeType)' != 'Core'" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.UnregisterAssembly"                    AssemblyName="Microsoft.Build.Tasks.v3.5, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" Runtime="CLR2" Condition="'$(DisableOutOfProcTaskHost)' == '' and '$(MSBuildRuntimeType)' != 'Core'" />
+
+    <UsingTask TaskName="Microsoft.Build.Tasks.UpdateManifest"                        AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.Unzip"                                 AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.VerifyFileHash"                        AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.Warning"                               AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.WriteCodeFragment"                     AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.WriteLinesToFile"                      AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.XmlPeek"                               AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.XmlPoke"                               AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.XslTransformation"                     AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.WinMDExp"                              AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+    <UsingTask TaskName="Microsoft.Build.Tasks.ZipDirectory"                          AssemblyName="Microsoft.Build.Tasks.Core, Version=15.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
 
     <!-- Roslyn tasks are now in an assembly owned and shipped by Roslyn -->
-    <UsingTask TaskName="Microsoft.CodeAnalysis.BuildTasks.Csc"                       AssemblyFile="$(RoslynTargetsPath)\Microsoft.Build.Tasks.CodeAnalysis.dll" Condition="'$(MSBuildAssemblyVersion)' != ''" />
-    <UsingTask TaskName="Microsoft.CodeAnalysis.BuildTasks.Vbc"                       AssemblyFile="$(RoslynTargetsPath)\Microsoft.Build.Tasks.CodeAnalysis.dll" Condition="'$(MSBuildAssemblyVersion)' != ''" />
-    <UsingTask TaskName="Microsoft.CodeAnalysis.BuildTasks.CopyRefAssembly"           AssemblyFile="$(RoslynTargetsPath)\Microsoft.Build.Tasks.CodeAnalysis.dll" Condition="'$(MSBuildAssemblyVersion)' != ''" />
+    <UsingTask TaskName="Microsoft.CodeAnalysis.BuildTasks.Csc"                       AssemblyFile="$(RoslynTargetsPath)\Microsoft.Build.Tasks.CodeAnalysis.dll" />
+    <UsingTask TaskName="Microsoft.CodeAnalysis.BuildTasks.Vbc"                       AssemblyFile="$(RoslynTargetsPath)\Microsoft.Build.Tasks.CodeAnalysis.dll" />
+    <UsingTask TaskName="Microsoft.CodeAnalysis.BuildTasks.CopyRefAssembly"           AssemblyFile="$(RoslynTargetsPath)\Microsoft.Build.Tasks.CodeAnalysis.dll" />
 
 </Project>
diff --git a/src/Tasks/Microsoft.NETFramework.props b/src/Tasks/Microsoft.NETFramework.props
index ed2109fb069..0bcdb236dbe 100644
--- a/src/Tasks/Microsoft.NETFramework.props
+++ b/src/Tasks/Microsoft.NETFramework.props
@@ -15,33 +15,9 @@ Copyright (C) Microsoft Corporation. All rights reserved.
 
 <Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
 
-   <!--
-        In VS 2010 SP1 and VS 2012, both supported for asset compatibility, the MSBuild installed
-        as part of them did not enforce using the local ToolsVersion (4.0) in all cases, but instead
-        just used whatever ToolsVersion was in the project file if it existed on the machine, and
-        only forced 4.0 if that ToolsVersion did not exist.
-
-        Moving forward, we do want to enforce a single acting ToolsVersion per version of Visual Studio,
-        but in order to approximate this behavior on VS 2010 SP1 and VS 2012 as well, we've redirected
-        the targets:  If we're building using 4.X MSBuild (which doesn't define the new reserved
-        property, MSBuildAssemblyVersion), we'll point right back at the 4.0 targets, which still exist
-        as part of the .NET Framework.  Only if we're using the new MSBuild will we point to the current
-        targets.
-   -->
-
-   <Choose>
-      <When Condition="'$(MSBuildAssemblyVersion)' == ''">
-         <PropertyGroup>
-            <NetFrameworkPropsPath>$(MSBuildFrameworkToolsPath)\Microsoft.NETFramework.props</NetFrameworkPropsPath>
-         </PropertyGroup>
-      </When>
-      <Otherwise>
-         <PropertyGroup>
-            <NetFrameworkPropsPath>$(MSBuildToolsPath)\Microsoft.NETFramework.CurrentVersion.props</NetFrameworkPropsPath>
-         </PropertyGroup>
-      </Otherwise>
-   </Choose>
-
-   <Import Project="$(NetFrameworkPropsPath)" />
+  <PropertyGroup>
+    <NetFrameworkPropsPath>$(MSBuildToolsPath)\Microsoft.NETFramework.CurrentVersion.props</NetFrameworkPropsPath>
+  </PropertyGroup>
+  <Import Project="$(NetFrameworkPropsPath)" />
 
 </Project>
diff --git a/src/Tasks/Microsoft.NETFramework.targets b/src/Tasks/Microsoft.NETFramework.targets
index 47f919f678d..ef06d37bd22 100644
--- a/src/Tasks/Microsoft.NETFramework.targets
+++ b/src/Tasks/Microsoft.NETFramework.targets
@@ -15,66 +15,9 @@ Copyright (C) Microsoft Corporation. All rights reserved.
 
 <Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
 
-   <!--
-        In VS 2010 SP1 and VS 2012, both supported for asset compatibility, the MSBuild installed
-        as part of them did not enforce using the local ToolsVersion (4.0) in all cases, but instead
-        just used whatever ToolsVersion was in the project file if it existed on the machine, and
-        only forced 4.0 if that ToolsVersion did not exist.
-
-        Moving forward, we do want to enforce a single acting ToolsVersion per version of Visual Studio,
-        but in order to approximate this behavior on VS 2010 SP1 and VS 2012 as well, we've redirected
-        the targets:  If we're building using 4.X MSBuild (which doesn't define the new reserved
-        property, MSBuildAssemblyVersion), we'll point right back at the 4.0 targets, which still exist
-        as part of the .NET Framework.  Only if we're using the new MSBuild will we point to the current
-        targets.
-   -->
-
-   <Choose>
-      <When Condition="'$(MSBuildAssemblyVersion)' == ''">
-         <PropertyGroup>
-            <NetFrameworkTargetsPath>$(MSBuildFrameworkToolsPath)\Microsoft.NETFramework.targets</NetFrameworkTargetsPath>
-         </PropertyGroup>
-      </When>
-      <Otherwise>
-         <PropertyGroup>
-            <NetFrameworkTargetsPath>$(MSBuildToolsPath)\Microsoft.NETFramework.CurrentVersion.targets</NetFrameworkTargetsPath>
-         </PropertyGroup>
-      </Otherwise>
-   </Choose>
-
-   <PropertyGroup Condition="'$(MSBuildAssemblyVersion)' == ''">
-      <!--
-           Overrides for the Microsoft.NETFramework.targets extension targets.  Used to make sure that only the imports we specify
-           (hard-coded to 4.0 locations) are used, not the 12.0 locations that would be used by default.
-       -->
-      <ImportByWildcardBefore40MicrosoftNetFrameworkTargets Condition="'$(ImportByWildcardBefore40MicrosoftNetFrameworkTargets)' == ''">$(ImportByWildcardBeforeMicrosoftNetFrameworkTargets)</ImportByWildcardBefore40MicrosoftNetFrameworkTargets>
-      <ImportByWildcardBefore40MicrosoftNetFrameworkTargets Condition="'$(ImportByWildcardBefore40MicrosoftNetFrameworkTargets)' == ''">true</ImportByWildcardBefore40MicrosoftNetFrameworkTargets>
-
-      <ImportByWildcardAfter40MicrosoftNetFrameworkTargets Condition="'$(ImportByWildcardAfter40MicrosoftNetFrameworkTargets)' == ''">$(ImportByWildcardAfterMicrosoftNetFrameworkTargets)</ImportByWildcardAfter40MicrosoftNetFrameworkTargets>
-      <ImportByWildcardAfter40MicrosoftNetFrameworkTargets Condition="'$(ImportByWildcardAfter40MicrosoftNetFrameworkTargets)' == ''">true</ImportByWildcardAfter40MicrosoftNetFrameworkTargets>
-
-      <ImportUserLocationsByWildcardBefore40MicrosoftNetFrameworkTargets Condition="'$(ImportUserLocationsByWildcardBefore40MicrosoftNetFrameworkTargets)' == ''">$(ImportUserLocationsByWildcardBeforeMicrosoftNetFrameworkTargets)</ImportUserLocationsByWildcardBefore40MicrosoftNetFrameworkTargets>
-      <ImportUserLocationsByWildcardBefore40MicrosoftNetFrameworkTargets Condition="'$(ImportUserLocationsByWildcardBefore40MicrosoftNetFrameworkTargets)' == ''">true</ImportUserLocationsByWildcardBefore40MicrosoftNetFrameworkTargets>
-
-      <ImportUserLocationsByWildcardAfter40MicrosoftNetFrameworkTargets Condition="'$(ImportUserLocationsByWildcardAfter40MicrosoftNetFrameworkTargets)' == ''">$(ImportUserLocationsByWildcardAfterMicrosoftNetFrameworkTargets)</ImportUserLocationsByWildcardAfter40MicrosoftNetFrameworkTargets>
-      <ImportUserLocationsByWildcardAfter40MicrosoftNetFrameworkTargets Condition="'$(ImportUserLocationsByWildcardAfter40MicrosoftNetFrameworkTargets)' == ''">true</ImportUserLocationsByWildcardAfter40MicrosoftNetFrameworkTargets>
-
-      <ImportByWildcardBeforeMicrosoftNetFrameworkTargets>false</ImportByWildcardBeforeMicrosoftNetFrameworkTargets>
-      <ImportByWildcardAfterMicrosoftNetFrameworkTargets>false</ImportByWildcardAfterMicrosoftNetFrameworkTargets>
-      <ImportUserLocationsByWildcardBeforeMicrosoftNetFrameworkTargets>false</ImportUserLocationsByWildcardBeforeMicrosoftNetFrameworkTargets>
-      <ImportUserLocationsByWildcardAfterMicrosoftNetFrameworkTargets>false</ImportUserLocationsByWildcardAfterMicrosoftNetFrameworkTargets>
-   </PropertyGroup>
-
-   <ImportGroup Condition="'$(MSBuildAssemblyVersion)' == ''">
-      <Import Project="$(MSBuildUserExtensionsPath)\4.0\Microsoft.NETFramework.targets\ImportBefore\*" Condition="'$(ImportUserLocationsByWildcardBefore40MicrosoftNetFrameworkTargets)' == 'true' and exists('$(MSBuildUserExtensionsPath)\4.0\Microsoft.NETFramework.targets\ImportBefore')"/>
-      <Import Project="$(MSBuildExtensionsPath)\4.0\Microsoft.NETFramework.targets\ImportBefore\*" Condition="'$(ImportByWildcardBefore40MicrosoftNetFrameworkTargets)' == 'true' and exists('$(MSBuildExtensionsPath)\4.0\Microsoft.NETFramework.targets\ImportBefore')"/>
-   </ImportGroup>
-
+    <PropertyGroup>
+      <NetFrameworkTargetsPath>$(MSBuildToolsPath)\Microsoft.NETFramework.CurrentVersion.targets</NetFrameworkTargetsPath>
+    </PropertyGroup>
    <Import Project="$(NetFrameworkTargetsPath)" />
 
-   <ImportGroup Condition="'$(MSBuildAssemblyVersion)' == ''">
-      <Import Project="$(MSBuildExtensionsPath)\4.0\Microsoft.NETFramework.targets\ImportAfter\*" Condition="'$(ImportByWildcardAfter40MicrosoftNetFrameworkTargets)' == 'true' and exists('$(MSBuildExtensionsPath)\4.0\Microsoft.NETFramework.targets\ImportAfter')"/>
-      <Import Project="$(MSBuildUserExtensionsPath)\4.0\Microsoft.NETFramework.targets\ImportAfter\*" Condition="'$(ImportUserLocationsByWildcardAfter40MicrosoftNetFrameworkTargets)' == 'true' and exists('$(MSBuildUserExtensionsPath)\4.0\Microsoft.NETFramework.targets\ImportAfter')"/>
-   </ImportGroup>
-
 </Project>
diff --git a/src/Tasks/Microsoft.VisualBasic.targets b/src/Tasks/Microsoft.VisualBasic.targets
index 9e3824ca1b2..666a807bede 100644
--- a/src/Tasks/Microsoft.VisualBasic.targets
+++ b/src/Tasks/Microsoft.VisualBasic.targets
@@ -18,29 +18,7 @@ Copyright (C) Microsoft Corporation. All rights reserved.
 
 <Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
 
-   <!--
-        In VS 2010 SP1 and VS 2012, both supported for asset compatibility, the MSBuild installed
-        as part of them did not enforce using the local ToolsVersion (4.0) in all cases, but instead
-        just used whatever ToolsVersion was in the project file if it existed on the machine, and
-        only forced 4.0 if that ToolsVersion did not exist.
-
-        Moving forward, we do want to enforce a single acting ToolsVersion per version of Visual Studio,
-        but in order to approximate this behavior on VS 2010 SP1 and VS 2012 as well, we've redirected
-        the targets:  If we're building using 4.X MSBuild (which doesn't define the new reserved
-        property, MSBuildAssemblyVersion), we'll point right back at the 4.0 targets, which still exist
-        as part of the .NET Framework.  Only if we're using the new MSBuild will we point to the current
-        targets.
-   -->
-
   <Choose>
-    <When Condition="'$(MSBuildAssemblyVersion)' == ''">
-      <PropertyGroup>
-        <VisualBasicTargetsPath>$(MSBuildFrameworkToolsPath)\Microsoft.VisualBasic.targets</VisualBasicTargetsPath>
-        <!-- Same condition as in .NET 4.5 VB targets so that we can override the behavior where it defaults to
-             MSBuildToolsPath, which would be incorrect in this case -->
-        <VbcToolPath Condition="'$(VbcToolPath)' == '' and '$(BuildingInsideVisualStudio)' != 'true'">$(MsBuildFrameworkToolsPath)</VbcToolPath>
-      </PropertyGroup>
-    </When>
     <When Condition="'$(IsCrossTargetingBuild)' == 'true'">
       <PropertyGroup>
         <VisualBasicTargetsPath>$(MSBuildToolsPath)\Microsoft.VisualBasic.CrossTargeting.targets</VisualBasicTargetsPath>
@@ -53,143 +31,10 @@ Copyright (C) Microsoft Corporation. All rights reserved.
     </Otherwise>
   </Choose>
 
-  <PropertyGroup Condition="'$(MSBuildAssemblyVersion)' == ''">
-    <!--
-         Overrides for the Microsoft.Common.targets extension targets. Used to make sure that only the imports we specify
-         (hard-coded to 4.0 locations) are used, not the 12.0 locations that would be used by default. Defined here because
-         Microsoft.VisualBasic.targets imports Microsoft.Common.targets from the current directory rather than using
-         MSBuildToolsPath, so defining these in Microsoft.Common.targets alone would not suffice for VB projects.
-
-         NOTE: This logic is duplicated in Microsoft.CSharp.targets (C# has the same problem) and in Microsoft.Common.targets
-         (for anyone who DOES import it directly), so for any changes to this logic in this file, please also edit the other two.
-     -->
-    <ImportByWildcardBefore40MicrosoftCommonTargets Condition="'$(ImportByWildcardBefore40MicrosoftCommonTargets)' == ''">$(ImportByWildcardBeforeMicrosoftCommonTargets)</ImportByWildcardBefore40MicrosoftCommonTargets>
-    <ImportByWildcardBefore40MicrosoftCommonTargets Condition="'$(ImportByWildcardBefore40MicrosoftCommonTargets)' == ''">true</ImportByWildcardBefore40MicrosoftCommonTargets>
-
-    <ImportByWildcardAfter40MicrosoftCommonTargets Condition="'$(ImportByWildcardAfter40MicrosoftCommonTargets)' == ''">$(ImportByWildcardAfterMicrosoftCommonTargets)</ImportByWildcardAfter40MicrosoftCommonTargets>
-    <ImportByWildcardAfter40MicrosoftCommonTargets Condition="'$(ImportByWildcardAfter40MicrosoftCommonTargets)' == ''">true</ImportByWildcardAfter40MicrosoftCommonTargets>
-
-    <ImportUserLocationsByWildcardBefore40MicrosoftCommonTargets Condition="'$(ImportUserLocationsByWildcardBefore40MicrosoftCommonTargets)' == ''">$(ImportUserLocationsByWildcardBeforeMicrosoftCommonTargets)</ImportUserLocationsByWildcardBefore40MicrosoftCommonTargets>
-    <ImportUserLocationsByWildcardBefore40MicrosoftCommonTargets Condition="'$(ImportUserLocationsByWildcardBefore40MicrosoftCommonTargets)' == ''">true</ImportUserLocationsByWildcardBefore40MicrosoftCommonTargets>
-
-    <ImportUserLocationsByWildcardAfter40MicrosoftCommonTargets Condition="'$(ImportUserLocationsByWildcardAfter40MicrosoftCommonTargets)' == ''">$(ImportUserLocationsByWildcardAfterMicrosoftCommonTargets)</ImportUserLocationsByWildcardAfter40MicrosoftCommonTargets>
-    <ImportUserLocationsByWildcardAfter40MicrosoftCommonTargets Condition="'$(ImportUserLocationsByWildcardAfter40MicrosoftCommonTargets)' == ''">true</ImportUserLocationsByWildcardAfter40MicrosoftCommonTargets>
-
-    <ImportByWildcardBeforeMicrosoftCommonTargets>false</ImportByWildcardBeforeMicrosoftCommonTargets>
-    <ImportByWildcardAfterMicrosoftCommonTargets>false</ImportByWildcardAfterMicrosoftCommonTargets>
-    <ImportUserLocationsByWildcardBeforeMicrosoftCommonTargets>false</ImportUserLocationsByWildcardBeforeMicrosoftCommonTargets>
-    <ImportUserLocationsByWildcardAfterMicrosoftCommonTargets>false</ImportUserLocationsByWildcardAfterMicrosoftCommonTargets>
-
-    <CustomBeforeMicrosoftCommonTargets Condition="'$(CustomBeforeMicrosoftCommonTargets)' == ''">$(MSBuildExtensionsPath)\v4.0\Custom.Before.Microsoft.Common.targets</CustomBeforeMicrosoftCommonTargets>
-    <CustomAfterMicrosoftCommonTargets Condition="'$(CustomAfterMicrosoftCommonTargets)' == ''">$(MSBuildExtensionsPath)\v4.0\Custom.After.Microsoft.Common.targets</CustomAfterMicrosoftCommonTargets>
-
-    <!-- Overrides for the Microsoft.VisualBasic.targets extension targets -->
-    <ImportByWildcardBefore40MicrosoftVisualBasicTargets Condition="'$(ImportByWildcardBefore40MicrosoftVisualBasicTargets)' == ''">$(ImportByWildcardBeforeMicrosoftVisualBasicTargets)</ImportByWildcardBefore40MicrosoftVisualBasicTargets>
-    <ImportByWildcardBefore40MicrosoftVisualBasicTargets Condition="'$(ImportByWildcardBefore40MicrosoftVisualBasicTargets)' == ''">true</ImportByWildcardBefore40MicrosoftVisualBasicTargets>
-
-    <ImportByWildcardAfter40MicrosoftVisualBasicTargets Condition="'$(ImportByWildcardAfter40MicrosoftVisualBasicTargets)' == ''">$(ImportByWildcardAfterMicrosoftVisualBasicTargets)</ImportByWildcardAfter40MicrosoftVisualBasicTargets>
-    <ImportByWildcardAfter40MicrosoftVisualBasicTargets Condition="'$(ImportByWildcardAfter40MicrosoftVisualBasicTargets)' == ''">true</ImportByWildcardAfter40MicrosoftVisualBasicTargets>
-
-    <ImportUserLocationsByWildcardBefore40MicrosoftVisualBasicTargets Condition="'$(ImportUserLocationsByWildcardBefore40MicrosoftVisualBasicTargets)' == ''">$(ImportUserLocationsByWildcardBeforeMicrosoftVisualBasicTargets)</ImportUserLocationsByWildcardBefore40MicrosoftVisualBasicTargets>
-    <ImportUserLocationsByWildcardBefore40MicrosoftVisualBasicTargets Condition="'$(ImportUserLocationsByWildcardBefore40MicrosoftVisualBasicTargets)' == ''">true</ImportUserLocationsByWildcardBefore40MicrosoftVisualBasicTargets>
-
-    <ImportUserLocationsByWildcardAfter40MicrosoftVisualBasicTargets Condition="'$(ImportUserLocationsByWildcardAfter40MicrosoftVisualBasicTargets)' == ''">$(ImportUserLocationsByWildcardAfterMicrosoftVisualBasicTargets)</ImportUserLocationsByWildcardAfter40MicrosoftVisualBasicTargets>
-    <ImportUserLocationsByWildcardAfter40MicrosoftVisualBasicTargets Condition="'$(ImportUserLocationsByWildcardAfter40MicrosoftVisualBasicTargets)' == ''">true</ImportUserLocationsByWildcardAfter40MicrosoftVisualBasicTargets>
-
-    <ImportByWildcardBeforeMicrosoftVisualBasicTargets>false</ImportByWildcardBeforeMicrosoftVisualBasicTargets>
-    <ImportByWildcardAfterMicrosoftVisualBasicTargets>false</ImportByWildcardAfterMicrosoftVisualBasicTargets>
-    <ImportUserLocationsByWildcardBeforeMicrosoftVisualBasicTargets>false</ImportUserLocationsByWildcardBeforeMicrosoftVisualBasicTargets>
-    <ImportUserLocationsByWildcardAfterMicrosoftVisualBasicTargets>false</ImportUserLocationsByWildcardAfterMicrosoftVisualBasicTargets>
-
-    <CustomBeforeMicrosoftVisualBasicTargets Condition="'$(CustomBeforeMicrosoftVisualBasicTargets)' == ''">$(MSBuildExtensionsPath)\v4.0\Custom.Before.Microsoft.VisualBasic.targets</CustomBeforeMicrosoftVisualBasicTargets>
-    <CustomAfterMicrosoftVisualBasicTargets Condition="'$(CustomAfterMicrosoftVisualBasicTargets)' == ''">$(MSBuildExtensionsPath)\v4.0\Custom.After.Microsoft.VisualBasic.targets</CustomAfterMicrosoftVisualBasicTargets>
-  </PropertyGroup>
-
-  <PropertyGroup Condition="'$(MSBuildAssemblyVersion)' == '' and ('$(TargetFrameworkIdentifier)' == '.NETFramework' or '$(TargetFrameworkIdentifier)' == 'Silverlight' or ('$(TargetFrameworkIdentifier)' == '' and ('$(TargetRuntime)' == 'Managed' or '$(TargetRuntime)' == '')))">
-     <!--
-          Overrides for the Microsoft.NETFramework.props extension targets. Used to make sure that only the imports we specify
-          (hard-coded to 4.0 locations) are used, not the 12.0 locations that would be used by default. Required because
-          Microsoft.Common.targets imports it from the current directory, so we don't get a chance to redirect these in its
-          own redirection targets.
-
-          NOTE: This logic is duplicated in Microsoft.CSharp.targets and in Microsoft.Common.targets because VB and C#
-          import Microsoft.Common.targets from the current directory and thus don't get the benefit of these redirections either,
-          so for any changes to this logic in this file, please also edit the other two.
-      -->
-    <ImportByWildcardBefore40MicrosoftNetFrameworkProps Condition="'$(ImportByWildcardBefore40MicrosoftNetFrameworkProps)' == ''">$(ImportByWildcardBeforeMicrosoftNetFrameworkProps)</ImportByWildcardBefore40MicrosoftNetFrameworkProps>
-    <ImportByWildcardBefore40MicrosoftNetFrameworkProps Condition="'$(ImportByWildcardBefore40MicrosoftNetFrameworkProps)' == ''">true</ImportByWildcardBefore40MicrosoftNetFrameworkProps>
-
-    <ImportByWildcardAfter40MicrosoftNetFrameworkProps Condition="'$(ImportByWildcardAfter40MicrosoftNetFrameworkProps)' == ''">$(ImportByWildcardAfterMicrosoftNetFrameworkProps)</ImportByWildcardAfter40MicrosoftNetFrameworkProps>
-    <ImportByWildcardAfter40MicrosoftNetFrameworkProps Condition="'$(ImportByWildcardAfter40MicrosoftNetFrameworkProps)' == ''">true</ImportByWildcardAfter40MicrosoftNetFrameworkProps>
-
-    <ImportUserLocationsByWildcardBefore40MicrosoftNetFrameworkProps Condition="'$(ImportUserLocationsByWildcardBefore40MicrosoftNetFrameworkProps)' == ''">$(ImportUserLocationsByWildcardBeforeMicrosoftNetFrameworkProps)</ImportUserLocationsByWildcardBefore40MicrosoftNetFrameworkProps>
-    <ImportUserLocationsByWildcardBefore40MicrosoftNetFrameworkProps Condition="'$(ImportUserLocationsByWildcardBefore40MicrosoftNetFrameworkProps)' == ''">true</ImportUserLocationsByWildcardBefore40MicrosoftNetFrameworkProps>
-
-    <ImportUserLocationsByWildcardAfter40MicrosoftNetFrameworkProps Condition="'$(ImportUserLocationsByWildcardAfter40MicrosoftNetFrameworkProps)' == ''">$(ImportUserLocationsByWildcardAfterMicrosoftNetFrameworkProps)</ImportUserLocationsByWildcardAfter40MicrosoftNetFrameworkProps>
-    <ImportUserLocationsByWildcardAfter40MicrosoftNetFrameworkProps Condition="'$(ImportUserLocationsByWildcardAfter40MicrosoftNetFrameworkProps)' == ''">true</ImportUserLocationsByWildcardAfter40MicrosoftNetFrameworkProps>
-
-    <ImportByWildcardBeforeMicrosoftNetFrameworkProps>false</ImportByWildcardBeforeMicrosoftNetFrameworkProps>
-    <ImportByWildcardAfterMicrosoftNetFrameworkProps>false</ImportByWildcardAfterMicrosoftNetFrameworkProps>
-    <ImportUserLocationsByWildcardBeforeMicrosoftNetFrameworkProps>false</ImportUserLocationsByWildcardBeforeMicrosoftNetFrameworkProps>
-    <ImportUserLocationsByWildcardAfterMicrosoftNetFrameworkProps>false</ImportUserLocationsByWildcardAfterMicrosoftNetFrameworkProps>
-  </PropertyGroup>
-
-  <ImportGroup Condition="'$(MSBuildAssemblyVersion)' == ''">
-    <Import Project="$(MSBuildUserExtensionsPath)\4.0\Microsoft.VisualBasic.targets\ImportBefore\*" Condition="'$(ImportUserLocationsByWildcardBefore40MicrosoftVisualBasicTargets)' == 'true' and exists('$(MSBuildUserExtensionsPath)\4.0\Microsoft.VisualBasic.targets\ImportBefore')"/>
-    <Import Project="$(MSBuildExtensionsPath)\4.0\Microsoft.VisualBasic.targets\ImportBefore\*" Condition="'$(ImportByWildcardBefore40MicrosoftVisualBasicTargets)' == 'true' and exists('$(MSBuildExtensionsPath)\4.0\Microsoft.VisualBasic.targets\ImportBefore')"/>
-  </ImportGroup>
-
-  <!-- Really should be imported right before Microsoft.Common.targets, but because Microsoft.VisualBasic.targets imports
-       Microsoft.Common.targets from the current directory rather than using MSBuildToolsPath (which would redirect to our
-       targets), we're stuck doing it this way instead. -->
-  <ImportGroup Condition="'$(MSBuildAssemblyVersion)' == ''">
-    <Import Project="$(MSBuildUserExtensionsPath)\4.0\Microsoft.Common.targets\ImportBefore\*" Condition="'$(ImportUserLocationsByWildcardBefore40MicrosoftCommonTargets)' == 'true' and exists('$(MSBuildUserExtensionsPath)\4.0\Microsoft.Common.targets\ImportBefore')"/>
-    <Import Project="$(MSBuildExtensionsPath)\4.0\Microsoft.Common.targets\ImportBefore\*" Condition="'$(ImportByWildcardBefore40MicrosoftCommonTargets)' == 'true' and exists('$(MSBuildExtensionsPath)\4.0\Microsoft.Common.targets\ImportBefore')"/>
-  </ImportGroup>
-
-  <!-- Really should be imported right before Microsoft.NETFramework.props, but because Microsoft.VisualBasic.targets imports
-       Microsoft.Common.targets from the current directory rather than using MSBuildToolsPath (which would redirect to our
-       targets), and Microsoft.Common.targets does likewise with Microsoft.NETFramework.props, we're stuck doing it this
-       way instead. -->
-  <ImportGroup Condition="'$(MSBuildAssemblyVersion)' == ''">
-    <Import Project="$(MSBuildUserExtensionsPath)\4.0\Microsoft.NETFramework.props\ImportBefore\*" Condition="'$(ImportUserLocationsByWildcardBefore40MicrosoftNetFrameworkProps)' == 'true' and exists('$(MSBuildUserExtensionsPath)\4.0\Microsoft.NETFramework.props\ImportBefore')"/>
-    <Import Project="$(MSBuildExtensionsPath)\4.0\Microsoft.NETFramework.props\ImportBefore\*" Condition="'$(ImportByWildcardBefore40MicrosoftNetFrameworkProps)' == 'true' and exists('$(MSBuildExtensionsPath)\4.0\Microsoft.NETFramework.props\ImportBefore')"/>
-  </ImportGroup>
-
   <Import Project="$(MSBuildToolsPath)\Microsoft.Managed.Before.targets" />
 
   <Import Project="$(VisualBasicTargetsPath)" />
 
   <Import Project="$(MSBuildToolsPath)\Microsoft.Managed.After.targets" />
 
-  <!-- Really should be imported right after Microsoft.NETFramework.props, but because Microsoft.VisualBasic.targets imports
-       Microsoft.Common.targets from the current directory rather than using MSBuildToolsPath (which would redirect to our
-       targets), and Microsoft.Common.targets does likewise with Microsoft.NETFramework.props, we're stuck doing it this
-       way instead. -->
-  <ImportGroup Condition="'$(MSBuildAssemblyVersion)' == ''">
-    <Import Project="$(MSBuildExtensionsPath)\4.0\Microsoft.NETFramework.props\ImportAfter\*" Condition="'$(ImportByWildcardAfter40MicrosoftNetFrameworkProps)' == 'true' and exists('$(MSBuildExtensionsPath)\4.0\Microsoft.NETFramework.props\ImportAfter')"/>
-    <Import Project="$(MSBuildUserExtensionsPath)\4.0\Microsoft.NETFramework.props\ImportAfter\*" Condition="'$(ImportUserLocationsByWildcardAfter40MicrosoftNetFrameworkProps)' == 'true' and exists('$(MSBuildUserExtensionsPath)\4.0\Microsoft.NETFramework.props\ImportAfter')"/>
-  </ImportGroup>
-
-  <!-- Really should be imported right after Microsoft.Common.targets, but because Microsoft.VisualBasic.targets imports
-       Microsoft.Common.targets from the current directory rather than using MSBuildToolsPath (which would redirect to our
-       targets), we're stuck doing it this way instead. -->
-  <ImportGroup Condition="'$(MSBuildAssemblyVersion)' == ''">
-    <Import Project="$(MSBuildExtensionsPath)\4.0\Microsoft.Common.targets\ImportAfter\*" Condition="'$(ImportByWildcardAfter40MicrosoftCommonTargets)' == 'true' and exists('$(MSBuildExtensionsPath)\4.0\Microsoft.Common.targets\ImportAfter')"/>
-    <Import Project="$(MSBuildUserExtensionsPath)\4.0\Microsoft.Common.targets\ImportAfter\*" Condition="'$(ImportUserLocationsByWildcardAfter40MicrosoftCommonTargets)' == 'true' and exists('$(MSBuildUserExtensionsPath)\4.0\Microsoft.Common.targets\ImportAfter')"/>
-  </ImportGroup>
-
-  <ImportGroup Condition="'$(MSBuildAssemblyVersion)' == ''">
-    <Import Project="$(MSBuildExtensionsPath)\4.0\Microsoft.VisualBasic.targets\ImportAfter\*" Condition="'$(ImportByWildcardAfter40MicrosoftVisualBasicTargets)' == 'true' and exists('$(MSBuildExtensionsPath)\4.0\Microsoft.VisualBasic.targets\ImportAfter')"/>
-    <Import Project="$(MSBuildUserExtensionsPath)\4.0\Microsoft.VisualBasic.targets\ImportAfter\*" Condition="'$(ImportUserLocationsByWildcardAfter40MicrosoftVisualBasicTargets)' == 'true' and exists('$(MSBuildUserExtensionsPath)\4.0\Microsoft.VisualBasic.targets\ImportAfter')"/>
-  </ImportGroup>
-
-   <!-- Fix up FrameworkPathOverride, which is primarily used to determine the location of mscorlib.dll in the
-        (relatively uncommon) situation where the reference assemblies, in which it's usually found, are not
-        installed.  Defined here rather than in Microsoft.Common.targets because the .NET Microsoft.VisualBasic.targets
-        imports Microsoft.Common.targets from the current directory. -->
-   <PropertyGroup Condition="'$(MSBuildAssemblyVersion)' == ''">
-      <FrameworkPathOverride Condition="!Exists('$(FrameworkPathOverride)\mscorlib.dll')">$(MSBuildFrameworkToolsPath)</FrameworkPathOverride>
-   </PropertyGroup>
-
 </Project>