eMule - eMule is a free peer-to-peer file sharing application for Microsoft Windows.
FileZilla - FileZilla is an FTP, or file transfer protocol, client. It lets individuals transfer single files or batches to a web server. For many years, FTP was the standard for website design. Read more about FileZilla.
Tixati - Tixati is a peer-to-peer file sharing program that uses the popular BitTorrent protocol.
WinSCP - WinSCP is an open source free SFTP client and FTP client for Windows.
Soulseek - Soulseek® is a unique ad-free, spyware free, and just plain free file sharing application.
ShareFile - Secure file sharing and sync