With Windows Live Messenger, you can connect with your Yahoo! Messenger with Voice contacts. It's as easy as adding their Yahoo! e-mail addresses. Forget needing multiple accounts to talk to all your friends—you'll be able to see when they're online and communicate with them from one place.
Speak your mind: Have a high-quality voice conversation using PC-to-PC Calling. Free.*
Those old science fiction movies with TV phones? That's what the new Messenger will give you, only better: live, full-screen (640x480) video.**
Drag a file onto a contact’s name. You’ve just created a Sharing Folder. Now you and your contact can get to all the files in the folder any time, even if one of you is offline.
See a little mobile icon next to a friend's name? Just right click to send a text message.†
With Windows Live Contacts, whenever your contacts update their information, it will also be changed in your Messenger address book. Instantly. (Your Windows Live Hotmail address book will be updated, too.)
Headlines, sports scores, traffic, or just about anything else you want to keep up with—get pop-up notifications of things as they happen.
System Requirements:
Operating system
Microsoft Windows XP SP2 or Windows Vista
Processor
Minimum 800 MHz processor
Memory
Minimum 128 MB of RAM (256 MB or more recommended)
Browser
Internet Explorer 6 or later
Internet connection
Internet functionality requires dial-up or broadband Internet access (provided separately). Local or long-distance charges may apply.
Resolution
Minimum 800 x 600 (1024 x 768 or larger recommended)
(Windows 2003 Server (Win2K3) and Windows XP x64 are not supported).

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