1 files changed, 19 insertions, 0 deletions
diff --git a/src/Common/src/Interop/Windows/ole32/Interop.CoInitializeEx.cs b/src/Common/src/Interop/Windows/ole32/Interop.CoInitializeEx.cs
new file mode 100644
index 000000000..f953d5ec4
--- /dev/null
+++ b/src/Common/src/Interop/Windows/ole32/Interop.CoInitializeEx.cs
@@ -0,0 +1,19 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+internal static partial class Interop
+{
+    internal static partial class Ole32
+    {
+        internal const uint COINIT_APARTMENTTHREADED = 2;
+        internal const uint COINIT_MULTITHREADED = 0;
+
+        [DllImport(Interop.Libraries.Ole32, ExactSpelling = true)]
+        internal extern static int CoInitializeEx(IntPtr reserved, uint dwCoInit);
+    }
+}