You can message and share files inside your intranet without a server.
Development toolkit for Web Services and XML data bindings for C & C++
A lightweight, high-performance Internet Relay Chat server
ZxoR Mafia Bot is an IRC text based game based on the party game
ZxoR BNC for mIRC - MSL Based project for BNC channels
An OpenSource Chat Solution
Client-server networking library
An IRC server written in Ruby
A Work-In-Progress, Full-Featured, Open Source IRC Client
The IRC's Talking Robot
Remote control your linux console encrypted trough Jabber chat service
A messaging system designed for home use Created by: Chad Dunn
BearChat is a very simple multi-user chat program.
Underground IM is a free Java Instant Messaging solution.