Someone asked on one of the Microsoft .NET newsgroups how he could check whether or not SP1 for Visual Studio .NET 2003 was installed. Service Pack 1 is published in the Microsoft Knowledge Base as article number 918700 so in order to check whether SP1 is installed you could check for the existance of the following registry key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Updates\Visual Studio\7.1\S918007
Even better would be to check if the value for the DWORD value "Installed" under this key, is set to 1 which means off course that SP1 for Visual Studio .NET 2003 is installed.
Cross-posted from
The .NET Aficionado