Very handy to have if you need to install SQL:
This article describes the known issues when you install Microsoft SQL Server on a computer that is running Windows 7 or Windows Server 2008 R2.
* For all editions except express edition of SQL Server 2008 running on Windows 7 and on Windows Server 2008 R2, you must have at least SQL Server 2008 Service Pack 1 (SP1) installed. Express edition already includes Service Pack 1.
* For all editions of SQL Server 2005 running on Windows 7 and on Windows Server 2008 R2 , you must have at least SQL Server 2005 Service Pack 3 (SP3) installed.
* In this article, Windows 7 indicates the client version of Windows 7. Windows Server 2008 R2 indicates the server version of Windows 7.