OK we finally released HMC 4.0 Rollup 3, which is for the full solution and contains all previousely released fixes that shipped previousely. More details are in the following KB Article Update Rollup 3 for Hosted Messaging and Collaboration...

IMPORTANT Notice: the Update for Windows Server 2003 (KB968930) causes the Exchange 2007, Exchange 2007 Mobility and Exchange 2007 Unified Messaging providers to fail with an error similar to the below: <response> <errorContext description...

NOTE : Please don’t install Update for Windows Server 2003 (KB968930) . This update will case cause an error in the Exchange 2007 Provider , we have an acvtive bug to fix that issue. See this post for more details The Windows Updates Compatibility...

While we are working on getting this information on to http://technet.microsoft.com/serviceproviders I am posting this here because I get asked about it almost daily. NOTE : Please don’t install Update for Windows Server 2003 (KB968930) . This update...

Update Rollup 6 for HMC 4.5 is now available here http://support.microsoft.com/?id=979704 . Note that this Rollup requires Exchange SP2, with Rollup 1. Microsoft has released an update that is dated December 2009. This update fixes issues in the following...