For sure, mIRC was the good old days. Windows 98 and houndstooth wallpaper :P.
I still use IRC to this day, just the client and the OS are different.
I still use mIRC. It pretty much works like in the old days and has aged very well IMHO, I've tried other clients but none would convince me to switch. Now I even have a license (when I started using it, maybe at 15 or so, I was too broke for that).
Winamp hasn't aged so well, sadly.
I suddenly feel the urge to slap something around a bit with a large trout.