Vista and the Flash plug-in

It sounds like Flash may not work 100% as expected in Windows Vista unless a user's using the latest version of the plug-in (9,0,28):

Senior Product Manager for Adobe Flash Player

Aral Balkan

It seemingly relates to a subset of specific functions which conflict with Vista's security model:

I haven't a copy of Vista to check any of this unfortunately, although I've no reason to doubt it. It sounds like something that might only affect users upgrading from XP and retaining older versions of the plug-in, or developers, developers, developers...