a MSN Messenger config server that supports both types of output formats that I made to prove a point (.NET Framework 2 or higher)

msgrConfigServer.cs

// messenger config server, macaroni and beef, serves 3 people.
// How to do it:
// 1) csc /target:winexe __FILE
// 2) Run the exe and enjoy.

// A server for MsgrConfig.xml, because someone wouldn't stop asking for it.
// Copyright 2024, yellows111
// I don't really care, so this is public domain or your favorite license.
// Author Doesn't Care Public License
// 0: I DO NOT CARE WHAT YOU DO WITH THIS PROGRAM, CODE, OR OTHER SUCH
//    YOU ARE ENTIRELY FREE TO MODIFY, SELL IT, OR WHATEVER YOU DESIRE
// LEGAL NOTICE: THIS SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY. OF ANY KIND

using System;
using System.Net;
using System.Net.Sockets;
using System.Windows.Forms;
using System.Threading;
using System.Xml;

namespace msgrConfigServer {
	class Program {
		private static TcpListener listener;
		private static NotifyIcon aWayToCloseMe;
		[STAThread]
		public static void Main(string[] args) {
			Int16 port = 80;
			if(args.Length > 0) {
				port = Int16.Parse(args[1]);
			}
			// notification area setup
			MenuItem exitButtonInThatContextMenu = new MenuItem();
			exitButtonInThatContextMenu.Index = 0;
			exitButtonInThatContextMenu.Text = "S&top service";
			exitButtonInThatContextMenu.Click += new System.EventHandler(quit);
			ContextMenu ourContextMenu = new ContextMenu();
			ourContextMenu.MenuItems.Add(exitButtonInThatContextMenu);
			aWayToCloseMe = new NotifyIcon();
			aWayToCloseMe.Icon = System.Drawing.Icon.ExtractAssociatedIcon(System.Reflection.Assembly.GetExecutingAssembly().Location);
			aWayToCloseMe.ContextMenu = ourContextMenu;
			aWayToCloseMe.Text = "Messenger Config Server is running";
			aWayToCloseMe.Visible = true;
			// http listener
			listener = new TcpListener(IPAddress.Parse("127.0.0.1"), (int)port);
			Thread serverThread = new Thread(new ThreadStart(httpService));
			serverThread.Start();
		}
		private static void httpService() {
			listener.Start();
			try {
				while(true) {
					TcpClient httpClient = listener.AcceptTcpClient();
					byte[] buffer = new byte[10240];
					NetworkStream stream = httpClient.GetStream();
					int length = stream.Read(buffer, 0, buffer.Length);
					string request = System.Text.Encoding.UTF8.GetString(buffer, 0, length);
					bool isPost = (request.Substring(0, 4) == "POST");
					Console.WriteLine("Got Request:\r\n" + request);
					XmlDocument MsgrConfig = new XmlDocument();
					MsgrConfig.Load("MsgrConfig.xml");
					string responseText;
					if(isPost) {
						responseText = "<?xml version=\"1.0\" encoding=\"utf-8\" ?> <soap:Envelope xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\"><soap:Body><GetClientConfigResponse xmlns=\"http://www.msn.com/webservices/Messenger/Client\"><GetClientConfigResult><![CDATA[" + MsgrConfig.OuterXml + "]]></GetClientConfigResult></GetClientConfigResponse></soap:Body></soap:Envelope>";
					} else {
						responseText = "<?xml version=\"1.0\" encoding=\"utf-8\"?> " + MsgrConfig.OuterXml;
					}
					byte[] response = System.Text.Encoding.UTF8.GetBytes(
						"HTTP/1.1 200 OK" + Environment.NewLine +
						"Content-Length: " + (responseText.Length+4) + Environment.NewLine +
						"Content-Type: text/xml;charset=UTF-8" + Environment.NewLine +
						"Connection: close" + Environment.NewLine +
						Environment.NewLine +
						responseText +
						Environment.NewLine +
						Environment.NewLine
					);
					stream.Write(response, 0, response.Length);
					System.Threading.Thread.Sleep(1000);
				}
			} catch (Exception ex) {
				MessageBox.Show(ex.Message, "Messenger Config Server Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
			} finally {
				quit(null, null);
			}
		}
		private static void quit(object Sender, EventArgs e) {
			aWayToCloseMe.Visible = false;
			listener.Stop();
			Environment.Exit(0);
		}
	}
}