Exchange 2010 SP1 can be downloaded via this link. Exchange 2010 SP1 You can also check your version of Exchange with this table: Exchange Server and Update Rollups Builds Numbers This Wiki page lists the Exchange Server versions and Update Rollups with release dates and KB respectively. Exchange Server Product name Build number Date Microsoft Exchange Server 2003 6.5.6944 6/30/2003 Microsoft Exchange Server 2003 SP1 6.5.7226 5/25/2004 Microsoft Exchange Server 2003 SP2 6.5.7638 10/19/2005 Microsoft Exchange Server 2007 8.0.685.24 12/9/2006 Microsoft Exchange Server 2007 8.0.685.25 12/9/2006 Microsoft Exchange Server 2007 SP1 8.1.240.6 11/29/2007 Microsoft Exchange Server 2007 SP2 8.2.176.2 8/24/2009 Microsoft Exchange Server 2007 SP3 8.3.083.6 6/20/2010 Microsoft Exchange Server 2010 14.0.639.21 11/9/2009 Microsoft Exchange Server 2010 SP1 14.1.218.15 8/24/2010 Exchange Server 2007 Service Pack 1 Product name Build number Date KB Microsoft Exchange Server Exchange 2007 SP1 8.1.240.6 11/29/2007 Update Rollup 1 for Exchange Server 2007 Service Pack 1 8.1.263.1 2/28/2008 KB945684 Update Rollup 2 for Exchange Server 2007 Service Pack 1 8.1.278.2 5/8/2008 KB948016 Update Rollup 3 for Exchange Server 2007 Service Pack 1 8.1.291.2 7/8/2008 KB949870 Update Rollup 4 for Exchange Server 2007 Service Pack 1 8.1.311.3 10/7/2008 KB952580 Update Rollup 5 for Exchange Server 2007 Service Pack 1 8.1.336.1 11/20/2008 KB953467 Update Rollup 6 for Exchange Server 2007 Service Pack 1 8.1.340.1 2/10/2009 KB959241 Update Rollup 7 for Exchange Server 2007 Service Pack 1 8.1.359.2 3/18/2009 KB960384 Update Rollup 8 for Exchange Server 2007 Service Pack 1 8.1.375.2 5/19/2009 KB968012 Update Rollup 9 for Exchange Server 2007 Service Pack 1 8.1.393.1 7/17/2009 KB970162 Update Rollup 10 for Exchange Server 2007 Service Pack 1 8.1.436.0 4/9/2010 KB981407 Exchange Server 2007 Service Pack 2 Product name Build number Date KB Microsoft Exchange Server 2007 SP2 8.2.176.2 8/24/2009 Update Rollup 1 for Exchange Server 2007 Service Pack 2 8.2.217.3 11/19/2009 KB971534 Update Rollup 2 for Exchange Server 2007 Service Pack 2 8.2.234.1 1/22/2010 KB972076 Update Rollup 3 for Exchange Server 2007 Service Pack 2 8.2.247.2 3/17/2010 KB979784 Update Rollup 4 for Exchange Server 2007 Service Pack 2 8.2.254.0 4/9/2010 KB981383 Exchange Server 2007 Service Pack 3 Product name Build number Date KB Microsoft Exchange Server 2007 SP3 8.3.083.6 6/20/2010 Update Rollup 1 for Exchange Server 2007 Service Pack 3 8.3.106.2 9/9/2010 KB2279665 Exchange Server 2010 Product name Build number Date KB Microsoft Exchange Server 2010 RTM 14.0.639.21 11/9/2009 Update Rollup 1 for Exchange Server 2010 14.0.682.1 12/9/2009 KB976573 Update Rollup 2 for Exchange Server 2010 14.0.689.0 3/4/2010 KB979611 Update Rollup 3 for Exchange Server 2010 14.0.694.0 4/9/2010 KB981401 Update Rollup 4 for Exchange Server 2010 14.0.702.1 6/17/2010 KB982639 Exchange Server 2010 Service Pack 1 Product name Build number Date KB Microsoft Exchange Server 2010 SP1 14.1.218.15 8/24/2010 Update Rollup 1 for Exchange Server 2010 SP1 14.1.255.2 10/4/2010 KB2407028 Last Table update at 25.08.2010