diff --git a/scripts/build.ps1 b/scripts/build.ps1
index b80ccd4bcd..d7af546be0 100644
--- a/scripts/build.ps1
+++ b/scripts/build.ps1
@@ -335,8 +335,7 @@ function Publish-Package
     $fullCLRPackage451Dir = Get-FullCLRPackageDirectory
     $fullCLRPackage45Dir = Get-FullCLRPackageDirectory45
     $uap100PackageDir = $(Join-Path $env:TP_OUT_DIR "$TPB_Configuration\$TPB_TargetFrameworkUap100");
-    $net20PackageDir = $(Join-Path $env:TP_OUT_DIR "$TPB_Configuration\net20");
-    $net35PackageDir = $(Join-Path $env:TP_OUT_DIR "$TPB_Configuration\net35");
+    $net45PackageDir = $(Join-Path $env:TP_OUT_DIR "$TPB_Configuration\net45");
     $netstandard10PackageDir = $(Join-Path $env:TP_OUT_DIR "$TPB_Configuration\$TPB_TargetFrameworkNS10");
     $netstandard13PackageDir = $(Join-Path $env:TP_OUT_DIR "$TPB_Configuration\$TPB_TargetFrameworkNS13");
     $netstandard20PackageDir = $(Join-Path $env:TP_OUT_DIR "$TPB_Configuration\$TPB_TargetFrameworkNS20");
@@ -485,8 +484,8 @@ function Publish-Package
     # Publish Microsoft.TestPlatform.AdapterUtilities
     Copy-Bulk -root (Join-Path $env:TP_ROOT_DIR "src\Microsoft.TestPlatform.AdapterUtilities\bin\$TPB_Configuration") `
             -files @{
-              # "net20"                     = $net20PackageDir               # net20 \ net20, and net35 isn't supported by the Test Platform
-              # "net35"                     = $net35PackageDir               # net35 / but this package supports, so adding targets.
+              # "net20"                     = $net20PackageDir               # net20
+                "net45/any"                 = $net45PackageDir               # $net4
                 $TPB_TargetFrameworkNS10    = $netstandard10PackageDir       # netstandard1_0
                 $TPB_TargetFrameworkNS20    = $netstandard20PackageDir       # netstandard2_0
                 $TPB_TargetFrameworkUap100  = $uap100PackageDir              # uap10.0
diff --git a/scripts/verify-nupkgs.ps1 b/scripts/verify-nupkgs.ps1
index 1ac89ac370..a7575287d9 100644
--- a/scripts/verify-nupkgs.ps1
+++ b/scripts/verify-nupkgs.ps1
@@ -19,7 +19,7 @@ function Verify-Nuget-Packages($packageDirectory, $version)
         "Microsoft.TestPlatform.CLI" = 381;
         "Microsoft.TestPlatform.Extensions.TrxLogger" = 35;
         "Microsoft.TestPlatform.ObjectModel" = 180;
-        "Microsoft.TestPlatform.AdapterUtilities" = 48;
+        "Microsoft.TestPlatform.AdapterUtilities" = 62;
         "Microsoft.TestPlatform.Portable" = 570;
         "Microsoft.TestPlatform.TestHost" = 214;
         "Microsoft.TestPlatform.TranslationLayer" = 123;
diff --git a/src/Microsoft.TestPlatform.AdapterUtilities/HierarchyConstants.cs b/src/Microsoft.TestPlatform.AdapterUtilities/HierarchyConstants.cs
new file mode 100644
index 0000000000..71eaba0d9d
--- /dev/null
+++ b/src/Microsoft.TestPlatform.AdapterUtilities/HierarchyConstants.cs
@@ -0,0 +1,52 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+namespace Microsoft.TestPlatform.AdapterUtilities
+{
+    /// <summary>
+    /// Constants to help declare Hierarchy test property.
+    /// </summary>
+    public static class HierarchyConstants
+    {
+        /// <summary>
+        /// Label to use on Hierarchy test property.
+        /// </summary>
+        public const string HierarchyLabel = "Hierarchy";
+
+        /// <summary>
+        /// Property id to use on Hierarchy test property.
+        /// </summary>
+        public const string HierarchyPropertyId = "TestCase." + HierarchyLabel;
+
+        /// <summary>
+        /// Meanings of the indices in the Hierarchy array.
+        /// </summary>
+        public static class Levels
+        {
+            /// <summary>
+            /// Total length of Hierarchy array.
+            /// </summary>
+            public const int TotalLevelCount = 4;
+
+            /// <summary>
+            /// Index of the namespace element of the array.
+            /// </summary>
+            public const int NamespaceIndex = 0;
+
+            /// <summary>
+            /// Index of the class element of the array.
+            /// </summary>
+            public const int ClassIndex = 1;
+
+            /// <summary>
+            /// Index of the test group element of the array.
+            /// </summary>
+            public const int TestGroupIndex = 2;
+
+            /// <summary>
+            /// Index of the display name element of the array.
+            /// </summary>
+            public const int DisplayNameIndex = 3;
+        }
+    }
+}
diff --git a/src/Microsoft.TestPlatform.AdapterUtilities/ManagedNameConstants.cs b/src/Microsoft.TestPlatform.AdapterUtilities/ManagedNameConstants.cs
new file mode 100644
index 0000000000..caca513122
--- /dev/null
+++ b/src/Microsoft.TestPlatform.AdapterUtilities/ManagedNameConstants.cs
@@ -0,0 +1,31 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+namespace Microsoft.TestPlatform.AdapterUtilities
+{
+    /// <summary>
+    /// Contants to help declare ManagedType and ManagedMethod test properties.
+    /// </summary>
+    public static class ManagedNameConstants
+    {
+        /// <summary>
+        /// Label to use on ManagedType test property.
+        /// </summary>
+        public const string ManagedTypeLabel = "ManagedType";
+
+        /// <summary>
+        /// Label to use on ManagedMethod test property.
+        /// </summary>
+        public const string ManagedMethodLabel = "ManagedMethod";
+
+        /// <summary>
+        /// Property id to use on ManagedType test property.
+        /// </summary>
+        public const string ManagedTypePropertyId = "TestCase." + ManagedTypeLabel;
+
+        /// <summary>
+        /// Property id to use on ManagedMethod test property.
+        /// </summary>
+        public const string ManagedMethodPropertyId = "TestCase." + ManagedMethodLabel;
+    }
+}
diff --git a/src/Microsoft.TestPlatform.AdapterUtilities/ManagedNameUtilities/Contants.cs b/src/Microsoft.TestPlatform.AdapterUtilities/ManagedNameUtilities/Contants.cs
deleted file mode 100644
index 77b8c2c2bb..0000000000
--- a/src/Microsoft.TestPlatform.AdapterUtilities/ManagedNameUtilities/Contants.cs
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) Microsoft Corporation. All rights reserved.
-// Licensed under the MIT license. See LICENSE file in the project root for full license information.
-
-namespace Microsoft.TestPlatform.AdapterUtilities.ManagedNameUtilities
-{
-    public static class Contants
-    {
-        public const string ManagedTypeLabel = "ManagedType";
-        public const string ManagedMethodLabel = "ManagedMethod";
-
-        public const string ManagedTypePropertyId = "TestCase." + ManagedTypeLabel;
-        public const string ManagedMethodPropertyId = "TestCase." + ManagedMethodLabel;
-    }
-}
diff --git a/src/Microsoft.TestPlatform.AdapterUtilities/Microsoft.TestPlatform.AdapterUtilities.csproj b/src/Microsoft.TestPlatform.AdapterUtilities/Microsoft.TestPlatform.AdapterUtilities.csproj
index aae96bd1d3..ba46a8f08f 100644
--- a/src/Microsoft.TestPlatform.AdapterUtilities/Microsoft.TestPlatform.AdapterUtilities.csproj
+++ b/src/Microsoft.TestPlatform.AdapterUtilities/Microsoft.TestPlatform.AdapterUtilities.csproj
@@ -5,7 +5,7 @@
   <Import Project="$(TestPlatformRoot)scripts/build/TestPlatform.Settings.targets" />
   
   <PropertyGroup>
-    <TargetFrameworks>netstandard1.0;netstandard2.0</TargetFrameworks>
+    <TargetFrameworks>netstandard1.0;netstandard2.0;net45</TargetFrameworks>
     <TargetFrameworks Condition="'$(OS)' == 'Windows_NT'">$(TargetFrameworks);uap10.0</TargetFrameworks>
     <WarningsAsErrors>true</WarningsAsErrors>
     
@@ -28,6 +28,11 @@
     <TargetFrameworkVersion Condition="'$(OS)' != 'Windows_NT'">v4.5.1</TargetFrameworkVersion>
   </PropertyGroup>
 
+  <PropertyGroup Condition="'$(TargetFramework)' == 'net45'">
+    <RuntimeIdentifier>any</RuntimeIdentifier>
+    <AutoGenerateBindingRedirects>false</AutoGenerateBindingRedirects>
+  </PropertyGroup>
+
   <ItemGroup Condition=" '$(TargetFramework)' == 'uap10.0' ">
     <PackageReference Include="Microsoft.NETCore.UniversalWindowsPlatform" Version="5.1.0" />
   </ItemGroup>
diff --git a/src/Microsoft.TestPlatform.AdapterUtilities/Resources/Resources.Designer.cs b/src/Microsoft.TestPlatform.AdapterUtilities/Resources/Resources.Designer.cs
index 19827c698e..039f006b5e 100644
--- a/src/Microsoft.TestPlatform.AdapterUtilities/Resources/Resources.Designer.cs
+++ b/src/Microsoft.TestPlatform.AdapterUtilities/Resources/Resources.Designer.cs
@@ -27,7 +27,7 @@ internal Resources()
             {
                 if (object.ReferenceEquals(resourceMan, null))
                 {
-#if NET20 || NET35
+#if NET20 || NET35 || NET40
                     global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("Microsoft.TestPlatform.AdapterUtilities.Resources.Resources", typeof(Resources).Assembly);
 #else
                     global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("Microsoft.TestPlatform.AdapterUtilities.Resources.Resources", typeof(Resources).GetTypeInfo().Assembly);
diff --git a/src/package/nuspec/Microsoft.TestPlatform.AdapterUtilities.nuspec b/src/package/nuspec/Microsoft.TestPlatform.AdapterUtilities.nuspec
index 84b41b837e..08cd5b6528 100644
--- a/src/package/nuspec/Microsoft.TestPlatform.AdapterUtilities.nuspec
+++ b/src/package/nuspec/Microsoft.TestPlatform.AdapterUtilities.nuspec
@@ -23,22 +23,30 @@
 
         <dependencies>
             <group targetFramework="netstandard1.0">
-                <dependency id="NETStandard.Library" version="[1.6.1, )" />
+                <dependency id="System.Globalization" version="[4.0.11, )" />
+                <dependency id="System.Reflection" version="[4.1.0, )" />
+                <dependency id="System.Runtime" version="[4.1.0, )" />
+                <dependency id="System.Collections" version="[4.0.11, )" />
+                <dependency id="System.Diagnostics.Debug" version="[4.0.11, )" />
+                <dependency id="System.Linq" version="[4.1.0, )" />
+                <dependency id="System.Reflection.Extensions" version="[4.1.0, )" />
+                <dependency id="System.Resources.ResourceManager" version="[4.0.1, )" />
             </group>
 
-            <group targetFramework="netstandard2.0">
-                <dependency id="NETStandard.Library" version="[1.6.1, )" />
-            </group>
+            <group targetFramework="netstandard2.0" />
             
             <group targetFramework="uap10.0">
                 <dependency id="Microsoft.NETCore.UniversalWindowsPlatform" version="[5.1.0, )" />
             </group>
+            
+            <group targetFramework="net45" />
         </dependencies>
     </metadata>
 
     <files>
         <file src="Icon.png" target="" />
         <file src="licenses\LICENSE_NET.txt" target="" />
+
         <file src="netstandard1.0\Microsoft.TestPlatform.AdapterUtilities.dll" target="lib\netstandard1.0" />
         <file src="netstandard1.0\**\Microsoft.TestPlatform.AdapterUtilities.resources.dll" target="lib\netstandard1.0" />
 
@@ -47,5 +55,8 @@
         
         <file src="uap10.0\Microsoft.TestPlatform.AdapterUtilities.dll" target="lib\uap10.0" />
         <file src="uap10.0\**\Microsoft.TestPlatform.AdapterUtilities.resources.dll" target="lib\uap10.0" />
+        
+        <file src="net45\Microsoft.TestPlatform.AdapterUtilities.dll" target="lib\net45" />
+        <file src="net45\**\Microsoft.TestPlatform.AdapterUtilities.resources.dll" target="lib\net45" />
     </files>
 </package>