OfficeIRC Messenger is an IRC client that has the exact same look of an Instant Messenger. It is designed for use within corporate environments for internal messaging. The software supports all common IRC client functionality and comes complete with its own Contacts list where you can add your buddies and see when they are online [...]

dxirc is a simple capable cross-platform IRC client written in C++ and FOX toolkit. dxirc is support multi operating system that works on Linux (e.g. Arch Linux, OpenSUSE, Ubuntu), *BSD (e.g. DesktopBSD) or even Windows. Keywords:dxirc,simple irc client

JAJC  is ICQ-like Jabber client that designed to run in  any Windows environment. It’s open source instant messaging application which is built on top of XML. This JAJC (Just Another Jabber Clients) have the capability to communicate with users of other instant messaging systems like AIM, ICQ, Yahoo, MSN, etc,  as well as other communication [...]