Today, I wanted to try out xchat for Windows. Since I tried to use it on a Linux box at university, I kind of like IRC chat. Especially when there are many people whom you can directly ask if you need information about technical stuff or events at university.
Sometimes I also use Windows so I wanted to install the windows port of this beautiful piece of software on my laptop. However, I didn't manage to connect to the IRC network at first, xchat claiming something like
"Software caused connection abort".
After some research I found out that the McAfee ViruScan Enterprise I installed for virus protection (thanks to the campus-wide license free to us students) is blocking IRC traffic in its standard configuration. Nobody knows, why. (Okay I assume there are viruses spreading on the IRC network... blah blah...) Anyways, I finally found a site to give me a hint on the anti-virus monster sitting in my task bar.
So just in case you wonder, too, why your IRC client doesn't work - remember McAfee is in no way better than Norton Antivirus: It tries just as hard to make good software unusable on your machine. tzzz