Ratiomaster.NET is a small standalone application which fakes upload and download stats of a torrent to almost all bittorrent trackers. This means that it does NOT rely on your bittorrent client (uTorrent, Azureus, BitComet, ABC and etc.) and it will NOT download/upload the files on a torrent - it only can fake download/upload. RatioMaster.NET has hardcoded emulations for the most commonly used BitTorrent clients: uTorrent, BitComet, Azureus, ABC, BitLord, BTuga, BitTornado, Burst, BitTyrant, BitSpirit.
TcpListener(int) is deprecated, updated to the new version TcpListener(IPAddress, int). The new parameter is just "IPAddress.Any"