diff --git a/src/System.Windows.Forms/src/System/Windows/Forms/OLE/DragDropHelper.cs b/src/System.Windows.Forms/src/System/Windows/Forms/OLE/DragDropHelper.cs
index 0d60be55fde..bc698519a31 100644
--- a/src/System.Windows.Forms/src/System/Windows/Forms/OLE/DragDropHelper.cs
+++ b/src/System.Windows.Forms/src/System/Windows/Forms/OLE/DragDropHelper.cs
@@ -520,7 +520,7 @@ private static bool TryGetDragDropHelper<TDragHelper>(TDragHelper** dragDropHelp
             throw new InvalidOperationException(SR.ThreadMustBeSTA);
         }
 
-        HRESULT hr = PInvoke.CoCreateInstance(
+        HRESULT hr = PInvokeCore.CoCreateInstance(
             in CLSID.DragDropHelper,
             pUnkOuter: null,
             CLSCTX.CLSCTX_INPROC_SERVER,
diff --git a/src/System.Windows.Forms/tests/IntegrationTests/UIIntegrationTests/DragDropTests.cs b/src/System.Windows.Forms/tests/IntegrationTests/UIIntegrationTests/DragDropTests.cs
index eb449ecdc47..95ebd897c64 100644
--- a/src/System.Windows.Forms/tests/IntegrationTests/UIIntegrationTests/DragDropTests.cs
+++ b/src/System.Windows.Forms/tests/IntegrationTests/UIIntegrationTests/DragDropTests.cs
@@ -543,7 +543,7 @@ await RunFormWithoutControlAsync(
     private unsafe bool TryGetUIAutomation(IUIAutomation** uiAutomation)
     {
         Guid CLSID_CUIAutomation = new("FF48DBA4-60EF-4201-AA87-54103EEF594E");
-        HRESULT hr = PInvoke.CoCreateInstance(
+        HRESULT hr = PInvokeCore.CoCreateInstance(
             in CLSID_CUIAutomation,
             pUnkOuter: null,
             CLSCTX.CLSCTX_INPROC_SERVER,
diff --git a/src/System.Windows.Forms/tests/InteropTests/PropertyGridTests.cs b/src/System.Windows.Forms/tests/InteropTests/PropertyGridTests.cs
index 04114a76ab5..6167e87cb21 100644
--- a/src/System.Windows.Forms/tests/InteropTests/PropertyGridTests.cs
+++ b/src/System.Windows.Forms/tests/InteropTests/PropertyGridTests.cs
@@ -122,7 +122,7 @@ private unsafe void ExecuteWithActivationContext(string applicationManifest, Act
     private unsafe object CreateComObjectWithRawIErrorInfoUsage()
     {
         Guid clsidRawErrorInfoUsageTest = new("0ED8EE0D-22E3-49EA-850C-E69B20D1F296");
-        PInvoke.CoCreateInstance(
+        PInvokeCore.CoCreateInstance(
             in clsidRawErrorInfoUsageTest,
             pUnkOuter: null,
             CLSCTX.CLSCTX_INPROC_SERVER,
@@ -133,7 +133,7 @@ private unsafe object CreateComObjectWithRawIErrorInfoUsage()
     private unsafe object CreateComObjectWithStandardIErrorInfoUsage()
     {
         Guid clsidStandardErrorInfoUsageTest = new("EA1FCB3A-277C-4C79-AB85-E2ED3E858201");
-        PInvoke.CoCreateInstance(
+        PInvokeCore.CoCreateInstance(
             in clsidStandardErrorInfoUsageTest,
             pUnkOuter: null,
             CLSCTX.CLSCTX_INPROC_SERVER,
diff --git a/src/System.Windows.Forms/tests/UnitTests/System/Windows/Forms/ComponentModel/Com2Interop/ComNativeDescriptorTests.cs b/src/System.Windows.Forms/tests/UnitTests/System/Windows/Forms/ComponentModel/Com2Interop/ComNativeDescriptorTests.cs
index 695116ab18e..3bd912db6ca 100644
--- a/src/System.Windows.Forms/tests/UnitTests/System/Windows/Forms/ComponentModel/Com2Interop/ComNativeDescriptorTests.cs
+++ b/src/System.Windows.Forms/tests/UnitTests/System/Windows/Forms/ComponentModel/Com2Interop/ComNativeDescriptorTests.cs
@@ -90,7 +90,7 @@ public void ComNativeDescriptor_GetProperties_FromIPicture()
     public void ComNativeDescriptor_GetProperties_FromActiveXMediaPlayerControl_ComInterop()
     {
         Guid guid = typeof(WindowsMediaPlayerClass).GUID;
-        HRESULT hr = PInvoke.CoCreateInstance(
+        HRESULT hr = PInvokeCore.CoCreateInstance(
             in guid,
             pUnkOuter: null,
             CLSCTX.CLSCTX_INPROC_SERVER,