We have released Update Rollup 9 for Exchange Server 2007 Service Pack 1 (KB 970162) to the download center. The release of the rollup via Microsoft Update will happen on July 28. Read the details at http://msexchangeteam.com/archive/2009/07/17/451835.aspx also KB 970162 has more details about this release and a complete list of all fixes included in this rollup.

 

Note this important point in the article “Support for Windows Server 2008 R2 Domain Controllers in the environment (Note: Exchange Server 2007 itself is not supported to be installed on a Windows Server 2008 R2 system