Trillian 6.0.0.59Trillian is a fully featured, stand-alone, skinnable chat client that supports AIM, ICQ, MSN, Yahoo Messenger, and IRC
WinT Messenger 1.2.0 BetaA reliable and easy to configure network chat client that you can use to communicate with other users within the same LAN without interchanging IP addresses
Simple Chat Client 1.9.0.0Easy to use chat client that makes available multiple channels neatly organized into categories so you know from the start the conversation subject you engage in
SeaMonkey 2.25 / 2.26b1 Beta / 2.27a2 AuroraSeaMonkey is web-browser, advanced e-mail and newsgroup client, IRC chat client, and HTML editing made simple - all your Internet needs in one application
Pidgin 2.7.4Pidgin (formerly Gaim) is a multi-protocol instant messaging client