Why won't Diablo II LoD install?

[demondude]

By the looks of it problems with Diablo (or any older game) with Vista are common. I think Setup.exe is the problem, as it just doesn't load, which prevents me from getting to the install screen. They both work fine on my friends XP computer, but I don't really want to downgrade/upgrade to XP.

EDIT: I'm uploading a video which shows what's wrong. Maybe that will help.

EDIT: Never use BSR screen recorder, it sucks. YouTube - BSR 2009 04 20 15 12 42

It doesn't show very well, but I click on setup.exe and it does nothing. It actually takes me to a black screen for about two seconds, but that didn't show on this video.