Messenger for Mac 5.1.1 makes it easy to take advantage of the full power of instant messaging and incorporates improvements to corporate accounts. This update allows users of Messenger for Mac to view icons for contacts of other Messenger clients, ability to suppress saving conversation history, detect multiple points of presence, and improve the stability of corporate accounts using the Microsoft Office Live Communications Server service.

By using Messenger for Mac, you can see when your friends, family, coworkers, and associates at other companies are online and then communicate with them instantly. Messenger for Mac offers two types of communication services - a personal account and a corporate account. A personal account works with the MSN® Messenger service on the Microsoft Passport Network. Contacts that you add to your personal account include friends and family members. A corporate account uses the Microsoft Office Live Communications Server service. Contacts that you add to your corporate account include coworkers who are in the same company as you and associates at other companies. Instant message conversations with other corporate account users are not limited to corporate users who have Messenger for Mac installed on their computers. With the federation features enabled on Live Communications Server, users can also have instant message conversations with users who have other instant messaging services, such as AOL Instant Messenger (AIM), Yahoo Messenger, and iChat users who are signed in with AOL accounts.

Download: http://www.microsoft.com/downloads/details.aspx?FamilyID=4e58...aa6&DisplayLang=en