Restarting from Scratch

So much for trying to solve this by attempting to change my visual studio configuration. As soon as I tried to start the Visual Studio 2005 installation to add the missing components I was greeted by the infamous error:

d:\vs\vs_setup.msi could not be opened.

Uninstalling VS2005 to reinstall wouldn't work, either; it does use the same setup after all. So now I have the pleasure of having to start setting up my development virtual machine from scratch courtesy of a screwed VS installation. Thanks goodness this is just a virtual machine and not my main one.