I'd question just how much of a problem this is, even on Windows XP. I've worked with lots of firms where end users don't have admin rights and still use dozens

I'd question just how much of a problem this is, even on Windows XP. I've worked with lots of firms where end users don't have admin rights and still use dozens of apps without any issue. It's really inexcusable for a Windows app to require admin rights in 2008 (unless it's actually doing system-level stuff), but even if you've got one that does, there are still options for a reasonably savvy user to work around it.