telnet client

Coccinella is a free and open-source cross-platform chat client.

A secure FTP client with powerful scheduler and management controls

Quassel IRC is a modern, distributed IRC client based on the Qt4 framework.

SFTP Client provides secure file transfer functionality over any reliable data.

DexterWire is a fork of the very popular LimeWire Gnutella client.

BigAnt Office Messenger is a server/client Instant Messaging program

Heighten the functionality of your Shareaza file sharing client.

ASP.NET and Silverlight OLAP control: client for MS Analysis Services 2000-2008.

A free add-on for the currently dominant BitTorrent client in the world.

An acceleration plug-in for the users of the popular Ares Galaxy p2p client.