CF5 under Vista:

Re IIS7 not running ASAPI[sic] filters. Sure it does, its just not in the default installation. (At least on Vista, which I've been running for 3 days now, you have to go into: Control Panel/Programs and Features/Turn Windows Features on or off/ Internet Information Services/ World Wide Web Services/ Application Development Features and choose ISAPI Extensions and ISAPI features.

I really have to get out from behind this CF5 Eight Ball. We have a plan in place to migrate everything to ASP.NET, but even once the new site is done it will be years before we turn the old CF5 system off...