Try inserting a Flash file with the dimensions of 980 x 640 pixels into your PowerPoint to see what the effect is when you publish it with Articulate Presenter. I did just that and discovered an interesting way to fill up the Articulate player screen with a movie that covers the player completely. It's a different way to get a special effect for a splash screen or perhaps include a video demonstration at some point during a presentation. Note that I used the slide only view for my published presentation.
Be sure to include a way to navigate away from the slide containing the Flash movie. I had enabled keyboard control and could use the pagedown key to advance to the next slide. You could also have the player advance to the next slide automatically when the movie is done, or include a buttom in the movie that uses the Articulate API to go to another slide.
This is just a fun discovery that was inspired by another Screenr posting from Jeannette Brooks of Articulate. Check out my demonstration on Screenr.