The login information is stored in the registry.
To delete it go to Start -> Run and enter regedit
then go to HKEY_CURRENT_USER / Software / Microsoft / MSNMessenger
delete that key
2007-01-15 09:26:15 補充:
bskyplanet chi ma gun
I am sure it doesn't work. The information is store in the registry. "應該在c: program file : messenger" Go check it before posting on the web. Dumb fukk