Windows Live Essentials beta
“Windows Live Essentials beta includes free programs from Microsoft for photos, movies, instant messaging, e‑mail, blogging, and more. Get them all in one download and get more done with Windows.
Windows Live Essentials beta requires Windows 7 or Windows Vista. Learn how to upgrade from Windows XP. It includes beta versions of Messenger, Photo Gallery, Mail, Movie Maker, Writer, Family Safety, and Sync, plus Bing Bar and Messenger Companion. You also get Microsoft Office Outlook Connector Pack and Microsoft Silverlight”
Windows Live Messenger beta
“Messenger combines the best IM with social networking, so you stay connected with the people who matter most. Share photos and videos in real time while you chat. Express yourself with 3D emoticons. Stay on top of what your friends are doing across social networking sites, right in Messenger.
Messenger beta requires Windows 7 or Windows Vista, and is part of Windows Live Essentials beta“