telnet client

Exchange e-mail messages via e-mail client supporting encryption and e-mail certificate automation.

Free IRC client for Windows.

FrostWire, a Gnutella Peer-to-Peer client.

A chat client compatible with various IM and social networks.

Feature rich BitTorrent client.

A Subversion client, implemented as a windows shell extension.

Shareaza is a peer-to-peer client that allows you to download any file-type.

Spamihilator works between your E-Mail client and the Internet and examines every incoming E-Mail.

Universal instant messenger client for AIM, ICQ, MSN, IRC, Yahoo, and Jabber.

Pegasus Mail is a free, standards-based electronic mail client for multiple users.