Removing Windows Messenger
It seems that a lot of people are interested in removing Windows Messenger for some reason, though I strongly recommend against this: In Windows XP, Windows Messenger will be the hub of your connection to the .NET world, and now that this feature is part of Windows, I think we’re going to see a lot of .NET Passport-enabled Web sites appearing as well. But if you can’t stand the little app, this will allow you to uninstall Messenger.
If you’d like Windows Messenger to show up in the list of programs you can add and remove from Windows, navigate to C:\WINDOWS\inf (substituting the correct drive letter for your version of Windows) and open sysoc.inf . You’ll see a line that reads:
Change this to the following and Windows Messenger will appear in Add or Remove Programs, then Add/Remove Windows Components, then , and you can remove it for good: