You don’t need Windows Messenger for MSN Messenger to work correctly. I have removed Windows Messenger using the same method as I posted earlier, and my MSN Messenger works fine. Windows Messenger is a different program which comes with Windows XP. Removing Windows Messenger should not cause problems with MSN Messenger, and obviously if Windows Messenger has been removed, it therefore cannot sign in. However MSN Messenger will still be able to sign in and work fully after Windows Messenger has been removed. Sorry the explanation is slightly long winded, hopefully i’ve got it right this time.