A lot off people seem to have problems with Windows Messenger 4.7 and MSN Messenger 6.2 mixing up. If nobody on your PC ever uses Windows Messenger 4.7 then the easiest way to permanently get rid of such problems is deleting 4.7 completely.
The easiest way todo that:
- Make sure Messenger is no running (press CTRL-ALT-DEL to kill processes if needed).
- Go to "C:\Program Files\Messenger"
- Delete all the files in that folder (or just delete the folder itself).
- Go to
http://messenger.msn.com/
- Download MSN Messenger 6.2 and install
- If Plus! fails to work you could uninstall your current Plus! > reboot > Download and install fresh Plus!.