Hi there ^^
I think it would be nice to have some IRC client included on the UBCD, for sometimes one may want to ask for help on IRC to fix his own system which isn't booting anymore.
So, a while ago I've seen some article on freedos.org ( http://sourceforge.net/forum/forum.php?forum_id=799836
) about LeetIRC, which is a DOS based freeware IRC client.
Though I've been unable to make it work myself in a virtual PC (shame on me, but I didn't try long, been busy with higher priority stuff ^^ ), I believe it should be a fine utility to add to the UBCD :]