Start and stop web service programatically

class Server
  {
    private volatile bool _isStopRequested=false;
    private TcpListener tcpListener;
    private Thread listenThread;

    public Server()
    {
      this.tcpListener = new TcpListener(IPAddress.Any, 3000);
      this.listenThread = new Thread(new ThreadStart(ListenForClients));
    }

    public void Start()
    {
     this.listenThread.Start();
    }

public void Stop(){ 
_isStopRequested=false;
}


  private void ListenForClients()
  {
    this.tcpListener.Start();

    while (!_isStopRequested)
    {
      //blocks until a client has connected to the server
      TcpClient client = this.tcpListener.AcceptTcpClient();

      //do some stuff with your workflow....
    } 
  }
}