ICQlib

Version1.0.0
Homepage  http://kicq.sourceforge.net/icqlib.shtml
Userelektranox
ICQlib is the most feature complete, open source, library implementation of Mirabilis\' ICQ protocol available on the Internet. icqlib currently supports approximately 90% of the ICQ UDP v5 protocol and 80% of the ICQ TCP v2 protocol, including new UIN registration, chat, and file transfer.

Download