The most widely used IRC client
And NO! MIRC IS NOT IRC ! You cant be "on Mirc",you can just use it. or not.
The offcial statement:
mIRC is a shareware IRC client for Windows. It is developed and copyrighted by Khaled Mardam-Bey. mIRC is a highly configurable IRC client with all the goodies other clients on UNIX, Macintosh and even on windows offer, combined with a *nice* and clean user interface. mIRC offers full color text lines, DCC File Send and Get capabilities, programmable aliases, a remote commands and events handler, place sensitive popup menu's, a great Switchbar, World Wide Web and sound support, and... a lot more. mIRC is shareware but not crippled in any way...
(insert how to hack ctcp version reply here)
hardcoded version reply..you need to hex it..
follow up paper for the latest version of mIRC: http://www.flurnet.org/archive/papers/mIRC_VersionSpoofingII.pdf
Mirc does not work with ssl irc servers as standard but there is a nice plugin MircSSL
NB: New versions of mIRC do support SSL now, or so it seems.