Xfire 2.44 Build 761Description by the Software Developer:
"Xfire is a free utility that automatically keeps track of when and where gamers are playing PC games online and lets their friends join them easily.
It works regardless of game type, server browser, or gaming service that a player is using. Xfire eliminates the hassles of running multiple programs like IRC, instant messengers, or in-game friends lists to keep track of when and where a gamer's friends are playing.
It supports the best and the latest online PC games including server- and non-server-based First Person Shooters, Real Time Strategy, and Role Playing Games."