How do I make video freeze on final frame?

[maysong]

I've imported a .WMV file onto a PowerPoint 2007 slide. The movie starts playing automatically when the slide appears (which is how I want it.) Here is the problem: the movie runs through the animation once, then immediately rewinds to the first frame as soon the movie is finished. There is also an unsightly flash and fade to black before the video rewinds to the first frame.

I want the movie to play through just once and freeze on the final frame until I advance to the next slide. I have been fussing with this for days, and get seem to get it right. I need to show this presentation to my company on May 19th. Can someone please help?