I have been given a build structure that is essentially a shell swf, which I have full access to, and it loads in swf content from Articulate, Presenter, Quizmaker and Engage.
Unfortunately all of the above do not allow a transparent background option on export - so I'd either really like to be proved wrong about that, or alternatively be directed on how to make the output swfs have a transparent Stage/background.
My shell swf has access to those swfs once they're loaded... so I figure that's where I'd do whatever I need to do.
cheers, d