Favorites and groups - Put the people you chat with most at the top of your contacts, so you easily see when they're online. Want to chat with several people in one window? Just set up a group.
Share photos - Look at photos together, right in the conversation window. And Messenger tells you when people you know post new photos on Windows Live.
Customize - Show off your personal style with custom scenes, animated display pictures, and signature sounds.
Mobile and web - Using a public computer without Messenger? No problem! You can chat on the web from Windows Live Hotmail. Or, use Messenger on your mobile phone.
Get Messenger and stay in touch.
To Download Windows Live Messenger 2011 (15.4.3538) Full Version