Yahoo! Messenger 8.1
IM with Windows Live (MSN) Messenger users
How do I get the version of Yahoo! Messenger that lets me IM with Windows Live™ Messenger users? How do I have an IM conversation with a Windows Live™ Messenger user? What features work when I IM with a Windows Live™ Messenger friend? How do I add a Windows Live™ contact to my Messenger list? How can a Windows Live™ user add me to their contact list? Why do I need to register in addition to downloading Messenger? A Windows Live™ user has added me to their contact list. How do I start IMing with this user? What can I do with a Windows Live™ Messenger user?