Windows Live Messenger is the next-generation MSN Messenger. It has everything you already love about Messenger—your contact list, emoticons, and instant access to your friends via text, voice, and video—plus new ways to connect and share photos and documents effortlessly. As always, it's free to download Messenger and use most of its features. With Windows Live Messenger, you can now connect with your Yahoo! friends. Forget about using multiple accounts to talk to your friends. You can do it all directly from Windows Live Messenger

Windows Live Messenger 8.5 Beta 2