...) to implement BitTorrent protocol which was very helpful as it reduced the development time and gave some air to work on BitTorrent client logic. Libtorrent & Boost are written in c++ and so is StyxTorrent. To be specific StyxTorrent in written in MFC (Microsoft Foundation Classes) and ATL (Active Template Library) which fall under Visual C++. MFC provides easy access to Windows API and some of wonderful features provided by Windows Operating System. Visual Studio 2008 was used as IDE .