Thanks to for this:

2 days after the release of build 8.0.0787.00 Microsoft have now updated Windows Live Messenger to build 8.0.0792.00.

As the next generation of MSN Messenger, the world's most widely used instant messaging service, Windows Live Messenger goes beyond text IM to help people connect and share with voice, video and more. It also acts as a window to the Internet, connecting people to their e-mail, blogs, search and other Windows Live services with one click of the mouse.

Windows Live Messenger goes beyond the traditional instant messaging (IM) service, enabling people to connect and share, with free PC-to-PC calls and inexpensive calls from a PC to phones around the world, video calling, easy sharing with Sharing Folders, and more.

Windows Live Messenger 8.0 (build 8.0.0792.00)

Windows Live Messenger overview