I ran into a big pain trying to install Visual Studio on Vista. First, don’t try to install VS over a network share, it hung for several minutes and never could get started at installation. So I copied it down to my local system and tried to install from there. No luck, at the opening screen it would hang at “loading installation components”. I tried running setup as administrator (even though I was already in that local group), no luck. I tired installing msxml6 separately, no luck. I tried installing DExplore, no luck. I read about people having problems if USB thumb drives installed, I take mine out, still no luck. Then I read an old issue of Visual Studio where having your network card enabled can cause problems. I disable my card and what do you know, it install fine. This isn’t a Vista issue but a Visual Studio bug.