diff --git a/lib/csharp/src/TApplicationException.cs b/lib/csharp/src/TApplicationException.cs
new file mode 100644
index 0000000..1271968
--- /dev/null
+++ b/lib/csharp/src/TApplicationException.cs
@@ -0,0 +1,131 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+using System;
+using Thrift.Protocol;
+
+namespace Thrift
+{
+	public class TApplicationException : Exception
+	{
+		protected ExceptionType type;
+
+		public TApplicationException()
+		{
+		}
+
+		public TApplicationException(ExceptionType type)
+		{
+			this.type = type;
+		}
+
+		public TApplicationException(ExceptionType type, string message)
+			: base(message)
+		{
+			this.type = type;
+		}
+
+		public static TApplicationException Read(TProtocol iprot)
+		{
+			TField field;
+
+			string message = null;
+			ExceptionType type = ExceptionType.Unknown;
+
+			while (true)
+			{
+				field = iprot.ReadFieldBegin();
+				if (field.Type == TType.Stop)
+				{
+					break;
+				}
+
+				switch (field.ID)
+				{
+					case 1:
+						if (field.Type == TType.String)
+						{
+							message = iprot.ReadString();
+						}
+						else
+						{
+							TProtocolUtil.Skip(iprot, field.Type);
+						}
+						break;
+					case 2:
+						if (field.Type == TType.I32)
+						{
+							type = (ExceptionType)iprot.ReadI32();
+						}
+						else
+						{
+							TProtocolUtil.Skip(iprot, field.Type);
+						}
+						break;
+					default:
+						TProtocolUtil.Skip(iprot, field.Type);
+						break;
+				}
+
+				iprot.ReadFieldEnd();
+			}
+
+			iprot.ReadStructEnd();
+
+			return new TApplicationException(type, message);
+		}
+
+		public void Write(TProtocol oprot)
+		{
+			TStruct struc = new TStruct("TApplicationException");
+			TField field = new TField();
+
+			oprot.WriteStructBegin(struc);
+
+			if (!String.IsNullOrEmpty(Message))
+			{
+				field.Name = "message";
+				field.Type = TType.String;
+				field.ID = 1;
+				oprot.WriteFieldBegin(field);
+				oprot.WriteString(Message);
+				oprot.WriteFieldEnd();
+			}
+
+			field.Name = "type";
+			field.Type = TType.I32;
+			field.ID = 2;
+			oprot.WriteFieldBegin(field);
+			oprot.WriteI32((int)type);
+			oprot.WriteFieldEnd();
+			oprot.WriteFieldStop();
+			oprot.WriteStructEnd();
+		}
+
+		public enum ExceptionType
+		{
+			Unknown,
+			UnknownMethod,
+			InvalidMessageType,
+			WrongMethodName,
+			BadSequenceID,
+			MissingResult
+		}
+	}
+}