diff --git a/src/native/managed/cdac/mscordaccore_universal/Legacy/ISOSDacInterface.cs b/src/native/managed/cdac/mscordaccore_universal/Legacy/ISOSDacInterface.cs
index 73eb5aa3c24c5d..13499379e9ef75 100644
--- a/src/native/managed/cdac/mscordaccore_universal/Legacy/ISOSDacInterface.cs
+++ b/src/native/managed/cdac/mscordaccore_universal/Legacy/ISOSDacInterface.cs
@@ -24,6 +24,12 @@ internal struct DacpThreadStoreData
     public int fHostConfig; // Uses hosting flags defined above
 };
 
+internal struct DacpAppDomainStoreData
+{
+    public ClrDataAddress sharedDomain;
+    public ClrDataAddress systemDomain;
+    public int DomainCount;
+};
 internal struct DacpThreadData
 {
     public int corThreadId;
diff --git a/src/native/managed/cdac/mscordaccore_universal/Legacy/SOSDacImpl.cs b/src/native/managed/cdac/mscordaccore_universal/Legacy/SOSDacImpl.cs
index 4a07701f68daa1..6c64863d574c45 100644
--- a/src/native/managed/cdac/mscordaccore_universal/Legacy/SOSDacImpl.cs
+++ b/src/native/managed/cdac/mscordaccore_universal/Legacy/SOSDacImpl.cs
@@ -117,7 +117,36 @@ int ISOSDacInterface.GetAppDomainList(uint count, [In, MarshalUsing(CountElement
     int ISOSDacInterface.GetAppDomainName(ClrDataAddress addr, uint count, char* name, uint* pNeeded)
         => _legacyImpl is not null ? _legacyImpl.GetAppDomainName(addr, count, name, pNeeded) : HResults.E_NOTIMPL;
     int ISOSDacInterface.GetAppDomainStoreData(void* data)
-        => _legacyImpl is not null ? _legacyImpl.GetAppDomainStoreData(data) : HResults.E_NOTIMPL;
+    {
+        DacpAppDomainStoreData* appDomainStoreData = (DacpAppDomainStoreData*)data;
+        int hr = HResults.S_OK;
+        try
+        {
+            appDomainStoreData->sharedDomain = 0;
+            TargetPointer systemDomainPtr = _target.ReadGlobalPointer(Constants.Globals.SystemDomain);
+            appDomainStoreData->systemDomain = _target.ReadPointer(systemDomainPtr).ToClrDataAddress(_target);
+            TargetPointer appDomainPtr = _target.ReadGlobalPointer(Constants.Globals.AppDomain);
+            appDomainStoreData->DomainCount = _target.ReadPointer(appDomainPtr) != 0 ? 1 : 0;
+        }
+        catch (System.Exception ex)
+        {
+            hr = ex.HResult;
+        }
+#if DEBUG
+        {
+            if (_legacyImpl is not null)
+            {
+                DacpAppDomainStoreData dataLocal = default;
+                int hrLocal = _legacyImpl.GetAppDomainStoreData(&dataLocal);
+                Debug.Assert(hrLocal == hr, $"cDAC: {hr:x}, DAC: {hrLocal:x}");
+                Debug.Assert(appDomainStoreData->sharedDomain == dataLocal.sharedDomain, $"cDAC: {appDomainStoreData->sharedDomain:x}, DAC: {dataLocal.sharedDomain:x}");
+                Debug.Assert(appDomainStoreData->systemDomain == dataLocal.systemDomain, $"cDAC: {appDomainStoreData->systemDomain:x}, DAC: {dataLocal.systemDomain:x}");
+                Debug.Assert(appDomainStoreData->DomainCount == dataLocal.DomainCount, $"cDAC: {appDomainStoreData->DomainCount}, DAC: {dataLocal.DomainCount}");
+            }
+        }
+#endif
+        return hr;
+    }
     int ISOSDacInterface.GetApplicationBase(ClrDataAddress appDomain, int count, char* appBase, uint* pNeeded)
     {
         // Method is not supported on CoreCLR