Qui trovate l'SDK versione 1.1 di Visual Studio 2008.
Riporto dal sito Ms:
"The Visual Studio 2008 Software Development Kit (SDK) 1.1 includes tools,
documentation, and samples for developers to design, build, test and deploy extensions
for Visual Studio 2008 Service Pack 1. You can also use the Visual Studio 2008 SDK 1.1
to create custom tools environments based on the Visual Studio 2008 Service Pack 1 Shell."
Questo invece il blog del team.
Riccardo.