SQL Server 2008 - Hold Your Horses...

Keep in mind, I'm just the messenger here... Apparently, you cannot install SQL Server 2008 if you have Visual Studio 2008 RTM installed; SQL Server 2008 requires Visual Studio SP1, which isn't quite available yet!

There is a KB article on the subject, and the release notes for SQL Server 2008 have been updated to reflect the requirement:

KB Article 956139 requires Visual Studio 2008 SP1, which is not available until the week of August 11, 2008. You should not install the Visual Studio 2008 SP1 Beta to meet the Visual Studio 2008 SP1 requirement for installing SQL Server 2008. Visual Studio 2008 SP1 Beta does not provide the necessary functionality for installing SQL Server 2008. The following describes options for installing SQL Server 2008 before Visual Studio 2008 SP1 is available.

  • If Visual Studio 2008 is not currently installed on your computer, you can install SQL Server 2008 and no further action for installing Visual Studio is required.
  • If Visual Studio 2008 is currently installed on your computer, you cannot install SQL Server 2008 successfully unless you perform one of the following actions:
    • Wait until Visual Studio 2008 SP1 is available and then install it before installing SQL Server 2008.
    • Uninstall Visual Studio 2008 and then install SQL Server 2008. After Visual Studio 2008 SP1 is available, you can install Visual Studio 2008 and then install Visual Studio 2008 SP1.
    • Only install components of SQL Server 2008 that do not require Visual Studio 2008. For example, do not select the Management Tools (both Basic and Complete), Integration Services, or Business Intelligence Development Studio features.