eMule - eMule is a free peer-to-peer file sharing application for Microsoft Windows.
BitTorrent - BitTorrent is a peer-to-peer program developed by Bram Cohen and BitTorrent, Inc.
WinMX - WinMX is another freeware peer-to-peer file sharing program by Frontcode Technologies only run on Microsoft Windows platforms only.
LimeWire - LimeWire is a free peer-to-peer file sharing platform that is available to use on Windows, Mac OS and Solaris platforms.
Kazaa - Kazaa is another peer-to-peer file sharing platform, use FastTrack protocol licensed by Joltid Ltd and operated as Kazaa by Sharman Network.
Soulseek - Soulseek® is a unique ad-free, spyware free, and just plain free file sharing application.