Uninstall Windows Messenger
Can't seem to find a way to uninstall Windows Messenger? Well, there is a way: Click Start > Run and in the Open: box type the following command (press OK when done):
RunDll32 advpack.dll,LaunchINFSection %windir%\INF\msmsgs.inf,BLC.Remove
You can just copy/paste the command above in the Open: box from the Run command.
Note: If you have Windows XP Service Pack 1 installed, you'll receive this error message:
Error Unregistering the OCX 16422
Just click OK, Windows Messenger will still be removed.