How to find an avaiable TCP port

This simple method will return the next avaiable TCP port

      private static int GetAvaiablePort()
      {
         IPEndPoint endPoint = new IPEndPoint(IPAddress.Any, 0);
         using (Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp))
         {
            socket.Bind(endPoint);
            IPEndPoint local = (IPEndPoint)socket.LocalEndPoint;
            return local.Port;
         }
      }