Client Virtualization in Microsoft Lync 2010

Microsoft has released the Client Virtualization in Microsoft Lync 2010 document - February 2012
You can get it here

Microsoft Outlook Configuration Analyzer Tool

Microsoft has released the Outlook Configuration Analyzer Tool, v1.0
You can get it here

Update Rollup 1 for Exchange Server 2010 Service Pack 2

Microsoft has released Update Rollup 1 for Exchange Server 2010 Service Pack 2
See info about the update in KB2645995 and download from here

Public IM Connectivity Provisioning Guide for Microsoft Lync Server, Office Communications Server, and Live Communications Server

Microsoft released v6.0 of the Public IM Connectivity Provisioning Guide.
You can get it here

Microsoft Office Communications Server 2007 R2 Group Chat: January 2012

Microsoft released Office Communications Server 2007 R2 Group Chat Server/Client v3.5.6907.244
Se description in KB2647090 and download from here

Updates for Microsoft Office Communications Server 2007 R2: January 2012

Microsoft released an update for Microsoft Office Communications Server 2007 R2 v3.5.6907.244
See description in KB968802 and download from here

Microsoft Office Communicator 2007 R2: January 2012

Microsoft released Office Communicator 2007 R2, v3.5.6907.244
See description in KB2647093 and download from here