diff --git a/test/csharp/CSharpServer.cs b/test/csharp/CSharpServer.cs
new file mode 100644
index 0000000..32cc703
--- /dev/null
+++ b/test/csharp/CSharpServer.cs
@@ -0,0 +1,112 @@
+﻿using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Thrift.Server;
+using Thrift.Transport;
+
+namespace CSharpTutorial
+{
+    public class CalculatorHandler : Calculator.Iface
+    {
+        Dictionary<int, SharedStruct> log;
+
+        public CalculatorHandler()
+        {
+            log = new Dictionary<int, SharedStruct>();
+        }
+
+        public void ping()
+        {
+            Console.WriteLine("ping()");
+        }
+
+        public int add(int n1, int n2)
+        {
+            Console.WriteLine("add({0},{1})", n1, n2);
+            return n1 + n2;
+        }
+
+        public int calculate(int logid, Work work)
+        {
+            Console.WriteLine("calculate({0}, [{1},{2},{3}])", logid, work.op, work.num1, work.num2);
+            int val = 0;
+            switch (work.op)
+            {
+                case Operation.ADD:
+                    val = work.num1 + work.num2;
+                    break;
+
+                case Operation.SUBTRACT:
+                    val = work.num1 - work.num2;
+                    break;
+
+                case Operation.MULTIPLY:
+                    val = work.num1 * work.num2;
+                    break;
+
+                case Operation.DIVIDE:
+                    if (work.num2 == 0)
+                    {
+                        InvalidOperation io = new InvalidOperation();
+                        io.what = (int)work.op;
+                        io.why = "Cannot divide by 0";
+                        throw io;
+                    }
+                    val = work.num1 / work.num2;
+                    break;
+
+                default:
+                    {
+                        InvalidOperation io = new InvalidOperation();
+                        io.what = (int)work.op;
+                        io.why = "Unknown operation";
+                        throw io;
+                    }
+            }
+
+            SharedStruct entry = new SharedStruct();
+            entry.key = logid;
+            entry.value = val.ToString();
+            log[logid] = entry;
+
+            return val;
+        }
+
+        public SharedStruct getStruct(int key)
+        {
+            Console.WriteLine("getStruct({0})", key);
+            return log[key];
+        }
+
+        public void zip()
+        {
+            Console.WriteLine("zip()");
+        }
+    }
+
+    public class CSharpServer
+    {
+        public static void Main()
+        {
+            try
+            {
+                CalculatorHandler handler = new CalculatorHandler();
+                Calculator.Processor processor = new Calculator.Processor(handler);
+                TServerTransport serverTransport = new TServerSocket(9090);
+                TServer server = new TSimpleServer(processor, serverTransport);
+
+                // Use this for a multithreaded server
+                // server = new TThreadPoolServer(processor, serverTransport);
+
+                Console.WriteLine("Starting the server...");
+                server.Serve();
+            }
+            catch (Exception x)
+            {
+                Console.WriteLine(x.StackTrace);
+            }
+            Console.WriteLine("done.");
+        }
+    }
+}