Update Rollup 2 for Exchange Server 2007 Service Pack 1 (KB948016)

Download information for Update Rollup 2 for Exchange 2007 SP1 here. http://www.microsoft.com/downloads/details.aspx?FamilyId=99DA32E0-D9E3-4156-AABF-8369BF96E3E7&displaylang=en
It will also be available on Microsoft Update