SQL Server 2008 Service Pack 1 - SP1

Microsoft published SQL Server 2008 Service Pack 1 on 7th of April 2009.

You can download SQL Server 2008 Service Pack 1 using following link:

http://www.microsoft.com/downloads/details.aspx?FamilyID=66ab3dbb-bf3e-4f46-9559-ccc6a4f9dc19&displaylang=en

10.0.1600.22    RTM (Release To Manufacturing)
10.00.2531.00    SP1