mIRC Co Ltd - (Trial version)
mIRC helps to get in touch with family, friends, colleagues on IRC networks around the world.
mIRC is a communication software that allows to chat with other users through chat rooms hosted within IRC (Internet Relay Chat) servers. This software also allows to connect through proxies and firewalls.
mIRC is a reference in this field because it is one of the first software that allowed such dialogues on the Internet.
The interface is not easy for a beginner and need to know the basics of IRC to be able to use it. By cons, all options are available IRC (much of the mouse).
mIRC is highly configurable, allowing to program aliases, commands and events. It also supports sending and receiving files.