Windows Live Messenger 9 + MSN features

It’s the next-generation MSN Messenger. Along with everything you already love about Messenger—your contact list, emoticons, and instant access to your friends—there are brilliant new ways to connect and share photos (and other stuff). As always, it's free to download Messenger and use most of its features.
Quick links

* Works with Windows Live OneCare Family Safety
* Talk to more of your friends, including those on Yahoo!
* PC-to-PC Calling
* Even better video conversations
* Sharing Folders
* Text message their phones
* Your two-way, super-powered address book
* Windows Live Alerts