I use and recommend xchat
, a multiplatform irc client. There are several versions available for windows
and only the official build by zed himself requires registration after 30 days. The other versions are free but might lack certain features.
Xchat is sriptable through various programming langues. mircscript is not supported
What IRC client do you use?
The looks can be changed by gtk themes and internal configuration of colors and events, and it gets complicated quickly. The screenshot above shows what my xchat looks like. I have attached the corresponding config files (you will need to change them!)