static void Main(string[] args)
        {
            try
            {
                TcpListener Server = new TcpListener(IPAddress.Any, 25565);
                Server.Start();
                Console.WriteLine("Server Started. Waiting for clients.");

                while (true)
                {
                    if (Server.Pending())
                    {
                        TcpClient client = Server.AcceptTcpClient();
                        NetworkStream stream = client.GetStream();
                        byte[] buffer = new byte[20];
                        buffer = Encoding.Default.GetBytes("Welcome");
                        stream.Write(buffer, 0, buffer.Length);
                    }
                    else
                        continue;
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
                Console.ReadKey();
            }
        }