1. Can I run a flex app in a frame? Like a nav bar at the top
of an html page for example.
2. Can the flex app register mouse clicks from an html frame
that it is not running in?
3. Can anyone point me to references on these subjects?
Yes you should be able to. I've personally run it in an
some message from the html frame passed to the navbar. However,
ExternalInterface has issues with having your page open in multiple
tabs/windows, so you may need to randomize the id of the navbar if
that is a concern.