DC++ - DC++ developed by Jacek Sieka.
BitTorrent - BitTorrent is a peer-to-peer program developed by Bram Cohen and BitTorrent, Inc.
AirDC++ - AirDC++ is an easy way to share files between users.
Soulseek - Soulseek® is a unique ad-free, spyware free, and just plain free file sharing application.
StrongDC++ - StrongDC++ is a client for sharing files in Direct Connect network by using NMDC and ADC protocols.
Shareaza - Shareaza is the most luxurious and sophisticated file sharing system you'll find.