eMule - eMule is a free peer-to-peer file sharing application for Microsoft Windows.
Amahi - Amahi is a media, home and app server software known for its easy-to-use user interface. Amahi has the best media, backup and web apps for small networks.
Tixati - Tixati is a peer-to-peer file sharing program that uses the popular BitTorrent protocol.
PetaSAN - PetaSAN is an open source Scale-Out SAN solution offering massive scalability and performance.
Soulseek - Soulseek® is a unique ad-free, spyware free, and just plain free file sharing application.
XigmaNAS - File Sharing, OS & Utilities, and Security & Privacy