This is Windows Live Messenger version 2009 aka Windows Live Messenger 9, the latest version of Windows Live Messenger from Microsoft. WLM, right now, is in beta stage, so ONLY beta testers will be able to sign in!
KEY FEATURES:
Connect and share instantly on the worlds most popular IM network
Talk to yahoo friends directly
Call one’s Phone or Pc
Better Video Conversations with a 640×480 resolution video
Folder sharing
Mobile Text Messaging
Super-Powered Address book
Windows Live Alerts
Freeware
SUPPORTED PLATFORMS:
Windows Me, Windows NT, Windows 2000, Windows XP, Vista