Most of you have probably already tried using the source server support in vs2008 for the .net framework code ScottGu announced (it was, after all, 8 days ago...) In it, it's recommended to add a hotfix.
When you try installing it, you get an installation failed notification. If you view the report (generated as a local html document with scripts, running from the local drive, and as such with script deactivated by default, stupid thing number 1), you see the following:
Returning IDOK. INSTALLMESSAGE_ERROR [Error .An installation package for the product  cannot be found. Try the installation again using a valid copy of the installation package ''.: 1706Microsoft Visual Studio 2008 Professional Edition - ENU]
As a guess, the valid copy of the installation package has the same name as the download from MSDN from which my copy of visual studio comes from. A message in the forums confirms the need for the physical media (or iso) to be present.
So there, my second award for software that sucks comes to the hotfix installer. Next time, a review on how badly the Hotmail outlook add-in sucks.