eMule - eMule is a free peer-to-peer file sharing application for Microsoft Windows.
DC++ - DC++ developed by Jacek Sieka.
Soulseek - Soulseek® is a unique ad-free, spyware free, and just plain free file sharing application.
AirDC++ - AirDC++ is an easy way to share files between users.
BitTorrent - BitTorrent is a peer-to-peer program developed by Bram Cohen and BitTorrent, Inc.
LinuxDC++ - LinuxDC++ is a port of https://alternativeto.net/software/dc/ direct connect client to Linux.