I'm afraid not. However, Windows Live Messenger (http://download.live.com/messenger) will
allow you to add you to add a Yahoo contact directly and you can converse that way.
Additionally, once you're on Windows Live Messenger, your Yahoo contact can also add your
Live ID to their Yahoo Messenger client to talk to you as well.
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Jonathan Kay
Microsoft MVP - Windows Live Messenger
MSN Messenger/Windows Messenger
MessengerGeek Blog: http://www.messengergeek.com
Messenger Resources: http://messenger.jonathankay.com
(c) 2009 Jonathan Kay - If redistributing, you must include this signature or citation