How to Enable Facebook Chat in Messenger 2011latest version ??

One of the most interesting additions to Messenger in its recent Wave 4 Beta refresh is the ability to chat with your friends on Facebook right from within Messenger itself. Chris Jones, Vice President Windows Live Engineering, called this new connection a significant task. Yet, how can you combine your Messenger and Facebook contact lists? Follow this how-to:

1. Browse to http://profile.live.com/Services/Add.aspx?appid=1140906031.
2. Activate the check box Chat with my Facebook friends in Messenger.
3. Scroll down and click Connect with Facebook.
4. Grant Windows Live permission to access Facebook Chat on your behalf.
5. Sign out and back in to Messenger. Your Facebook friends should now appear in the Facebook category.