First you will need to find out some information about Exchange, and the only way to do that is to open up the Exchange Management Shell and run the following:
Get-ExchangeServer | fl name,edition,admindisplayversion
Then you will be shown the following:
[PS] C:\Documents and Settings\Administrator.BCRICWH\Desktop>Get-ExchangeServer | fl name,edition,admindisplayversion Name : EXCH01A Edition : Standard AdminDisplayVersion : Version 8.1 (Build 240.6) Name : EXCH02A Edition : Standard AdminDisplayVersion : Version 8.1 (Build 240.6) Name : EXCHMBX01 Edition : Enterprise AdminDisplayVersion : Version 8.1 (Build 240.6) Name : mx4 Edition : Standard AdminDisplayVersion : Version 8.1 (Build 240.6) Name : mx3 Edition : Standard AdminDisplayVersion : Version 8.1 (Build 240.6)
As you can see the Version isn’t really all that informative. But its rather simple, the 8 stands for Exchange 2007 and the 1 stands for Service Pack 1. The build will also confirm that this is SP1, however I’m assuming it only changes when there are hotfixes or rollup updates.
Anyways, you can get all the version and build numbers from Microsoft at the following URL.
I am also going to copy and paste them here for historical purposes.
Exchange Server 4.0 4.0.837 April 1996Microsoft Exchange Server 4.0 (a) 4.0.993 August 1996Microsoft Exchange Server 4.0 SP1 4.0.838 May 1996Microsoft Exchange Server 4.0 SP2 4.0.993 August 1996Microsoft Exchange Server 4.0 SP3 4.0.994 November 1996Microsoft Exchange Server 4.0 SP4 4.0.995 April 1997Microsoft Exchange Server 4.0 SP5 4.0.996 May 1998Microsoft Exchange Server 5.0 5.0.1457 March 1997Microsoft Exchange Server 5.0 SP1 5.0.1458 June 1997Microsoft Exchange Server 5.0 SP2 5.0.1460 February 1998Microsoft Exchange Server 5.5 5.5.1960 November 1997Microsoft Exchange Server 5.5 SP1 5.5.2232 July 1998Microsoft Exchange Server 5.5 SP2 5.5.2448 December 1998Microsoft Exchange Server 5.5 SP3 5.5.2650 September 1999Microsoft Exchange Server 5.5 SP4 5.5.2653 November 2000Microsoft Exchange 2000 Server 6.0.4417 October 2000Microsoft Exchange 2000 Server (a) 6.0.4417 January 2001Microsoft Exchange 2000 Server SP1 6.0.4712 July 2001Microsoft Exchange 2000 Server SP2 6.0.5762 December 2001Microsoft Exchange 2000 Server SP3 6.0.6249 August 2002Microsoft Exchange 2000 Server post-SP3 6.0.6487 September 2003Microsoft Exchange 2000 Server post-SP3 6.0.6556 April 2004Microsoft Exchange 2000 Server post-SP3 6.0.6603 August 2004Microsoft Exchange 2000 Server post-SP3 6.0.6620.5 March 2008Microsoft Exchange 2000 Server post-SP3 6.0.6620.7 August 2008Microsoft Exchange Server 2003 6.5.6944 October 2003 Microsoft Exchange Server 2003 SP1 6.5.7226 May 2004Microsoft Exchange Server 2003 SP2 6.5.7638 October 2005Microsoft Exchange Server 2003 post-SP2 6.5.7653.33 March 2008Microsoft Exchange Server 2003 post-SP2 6.5.7654.4 August 2008Microsoft Exchange Server 2007 8.0.685.24 or 8.0.685.25 December 2006Microsoft Exchange Server 2007 SP1 8.1.0240.006 November 2007Microsoft Exchange Server 2007 SP2 8.2.0176.002 August 2009Microsoft Exchange Server 2010 14.00.0639.021 October 2009