private void Service()
        {

            while (true)
            {
                Socket socket = listener.AcceptSocket();


                string newValue = (Environment.NewLine + "Connected:" + socket.RemoteEndPoint);

                if (richTextBox.InvokeRequired)
                {

                    richTextBox.Invoke((MethodInvoker)delegate { richTextBox.AppendText(Environment.NewLine + "Connected:" + socket.RemoteEndPoint); });

                }

                else
                {

                    richTextBox.AppendText(newValue);

                }

                try
                {
                    // Open the stream
                    Stream stream = new NetworkStream(socket);
                    StreamReader sr = new StreamReader(stream);
                    StreamWriter sw = new StreamWriter(stream);
                    sw.AutoFlush = true;

                    sw.WriteLine("{0} stats available", highScoreTable.Count);
                    while (true)
                    {
                        // Read name from client
                        string name = sr.ReadLine();
                        if (name == "" || name == null) break;
                        richTextBox.AppendText(Environment.NewLine + "User:" + socket.RemoteEndPoint + " command" + name);
                        // Write score to client
                        if (highScoreTable.ContainsKey(name))
                            sw.WriteLine(highScoreTable[name]);

                        else
                            sw.WriteLine("The command does not exist.");


                    }
                    stream.Close();
                }
                catch (Exception e)
                {
                    richTextBox.AppendText("");
                }
                string newValue1 = (Environment.NewLine + "Disconnected:" + socket.RemoteEndPoint);

                if (richTextBox.InvokeRequired)
                {

                    richTextBox.Invoke((MethodInvoker)delegate { richTextBox.AppendText(Environment.NewLine + "Disconnected:" + socket.RemoteEndPoint); });

                }

                else
                {

                    richTextBox.AppendText(newValue1);

                }
                socket.Close();
            }
        }