Microsoft CSContactImporter

Microsoft has released the CSContactImporter Tool, v1.0
You can get it here

Microsoft Lync for Mac 2011: April 2012

Microsoft released Microsoft Lync for Mac 2011 v14.0.2
See description in KB2690036 and download from here

Update Rollup 7 for Exchange Server 2007 Service Pack 3

Microsoft has released Update Rollup 7 for Exchange Server 2007 Service Pack 3
See info about the update in KB2655203 and download from here

Update Rollup 2 for Exchange Server 2010 Service Pack 2

Microsoft has released Update Rollup 2 for Exchange Server 2010 Service Pack 2
See info about the update in KB2661854 and download from here

Updates for Microsoft Office Communications Server 2007 R2: April 2012

Microsoft released an update for Microsoft Office Communications Server 2007 R2 v3.5.6907.250
See description in KB968802 and download from here