public static void StartClient()
 {
 
  byte[] bytes = new byte[1024];

 
  try
  {
   IPHostEntry ipHostInfo = Dns.Resolve("localhost");
   IPAddress ipAddress = ipHostInfo.AddressList[0];
   IPEndPoint remoteEP = new IPEndPoint(ipAddress,11000);

   Socket sender = new Socket(AddressFamily.InterNetwork,
    SocketType.Stream, ProtocolType.Tcp );

   try
   {
    sender.Connect(remoteEP);

    Console.WriteLine("Socket connected to {0}",
     sender.RemoteEndPoint.ToString());

     Console.WriteLine("Enter command");
     string str=Console.ReadLine();
     byte[] msg = Encoding.ASCII.GetBytes(str);

     int bytesSent = sender.Send(msg);

     int bytesRec = sender.Receive(bytes);
     Console.WriteLine("Echoed test = {0}",
      Encoding.ASCII.GetString(bytes,0,bytesRec));
     
    sender.Shutdown(SocketShutdown.Both);
    sender.Close();
               
   }
   catch (ArgumentNullException ane)
   {
    Console.WriteLine("ArgumentNullException : {0}",ane.ToString());
   }
   catch (SocketException se)
   {
    Console.WriteLine("SocketException : {0}",se.ToString());
   }
   catch (Exception e)
   {
    Console.WriteLine("Unexpected exception : {0}", e.ToString());
   }

  }
  catch (Exception e)
  {
   Console.WriteLine( e.ToString());
  }
 }