1 files changed, 41 insertions, 0 deletions
diff --git a/src/mscorlib/src/System/NotSupportedException.cs b/src/mscorlib/src/System/NotSupportedException.cs
new file mode 100644
index 0000000000..ecef1d199a
--- /dev/null
+++ b/src/mscorlib/src/System/NotSupportedException.cs
@@ -0,0 +1,41 @@
+// 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.
+
+/*=============================================================================
+**
+**
+**
+** Purpose: For methods that should be implemented on subclasses.
+**
+**
+=============================================================================*/
+
+namespace System {
+    
+    using System;
+    using System.Runtime.Serialization;
+    [System.Runtime.InteropServices.ComVisible(true)]
+    [Serializable]
+    public class NotSupportedException : SystemException
+    {
+        public NotSupportedException() 
+            : base(Environment.GetResourceString("Arg_NotSupportedException")) {
+            SetErrorCode(__HResults.COR_E_NOTSUPPORTED);
+        }
+    
+        public NotSupportedException(String message) 
+            : base(message) {
+            SetErrorCode(__HResults.COR_E_NOTSUPPORTED);
+        }
+        
+        public NotSupportedException(String message, Exception innerException) 
+            : base(message, innerException) {
+            SetErrorCode(__HResults.COR_E_NOTSUPPORTED);
+        }
+
+        protected NotSupportedException(SerializationInfo info, StreamingContext context) : base(info, context) {
+        }
+
+    }
+}