1 files changed, 31 insertions, 0 deletions
diff --git a/src/mscorlib/src/System/PlatformID.cs b/src/mscorlib/src/System/PlatformID.cs
new file mode 100644
index 0000000000..b8725054cf
--- /dev/null
+++ b/src/mscorlib/src/System/PlatformID.cs
@@ -0,0 +1,31 @@
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+/*============================================================
+**
+**
+**
+** Purpose: Defines IDs for supported platforms
+**
+**
+===========================================================*/
+namespace System {
+
+    [Serializable]
+[System.Runtime.InteropServices.ComVisible(true)]
+    public enum PlatformID
+    {
+        Win32S        = 0,
+        Win32Windows  = 1,
+        Win32NT       = 2,
+        WinCE         = 3,      
+        Unix          = 4,
+        Xbox          = 5,
+#if !FEATURE_LEGACYNETCF
+        MacOSX        = 6
+#else // FEATURE_LEGACYNETCF
+        NokiaS60      = 6
+#endif // FEATURE_LEGACYNETCF
+    }
+
+}