Multiple Client Connection Simultaneously

Question

 hi ,

  I am working on a Server-Client Game on which multiple user can play this game. I have implemented this with the TCPListener and thread. but the problem is that connection can't be by more than one user at a time. When one connection is made then other can be made else it go to hung state. Can I implements this with asynchronous server-client techninque. Only Client code is for the user's who play the game . Server only send message to clients. Can Any one help me How can I achieve this problem. If any one have code for this plz send it to me at [e-mail] or post the answer.

public Form1()
  {
   //
   // Required for Windows Form Designer support
   //
   
   InitializeComponent();
   clients = new ArrayList();
   processor = new Thread(new ThreadStart(StartListening));
   processor.Start();

 
   //
   // TODO: Add any constructor code after InitializeComponent call
   //
  }
 /

/Function to open socket in Listen mode
  private  void StartListening()
  {
   try
   {
    //listenport = clsGetIpAddress.PortNo ;
    //listener = new TcpListener(listenport);
    listener = new TcpListener(clsGetIpAddress.PortNo);
    listener.Start();
    while (true)
    {
     try
     {
      lock(this)
      {
       Socket s = listener.AcceptSocket() ;
       clientsocket = s;
       clientservice = new Thread(new ThreadStart(ServiceClient));
       clientservice.Start();
      }
     }
     catch(Exception e)
     {
      Console.WriteLine(e.ToString() );
     }
    }
   }
   catch (SocketException ex)
   {
    MessageBox.Show(ex.Message );
  

 Regards,

Dinesh Kumar