I have some old classic asp scripts. They used to work on my 2003/IIS 6 server. But on my Vista/IIS 7 and now Windows 7 Ultimate/IIS 7 server the asp pages don't work. I did what they said here: Deploying a Classic ASP Server (IIS 7) (Microsoft TechNet). I enabled those 3 features in IIS 7 but that just went from getting 404 to 500 error.