"PowerPoint won't play my QuickTime movie file in either PowerPoint or Microsoft Windows Media Player.
Try to play the movie in Microsoft PowerPoint by creating a link to an application that will play it. The application must be installed on your computer.
Open the movie file from your desktop to see if you have another application installed that will play the file. If you can play the movie, continue with this task.
If you don't have a program that will play the movie, try downloading the appropriate QuickTime program from the Apple Computer, Inc., Web site, and proceed with this task.
Display the slide you want the movie on in PowerPoint, and on the Slide Show menu, point to Action Buttons, then select the Movie action button.
Draw a button on the slide. The Action Settings dialog box appears; click Run program and then click Browse.
In the Browse dialog box, change Files of type to All Files. Then browse to your movie file and click OK.
Click OK in the Action Settings dialog box.
During a presentation, when you get to the slide with the movie object on it, click the movie object to launch the application that plays the movie. If the application doesn't automatically play the movie, you will have to click a command within the application to launch the movie.
The above steps are also useful for running other applications during a presentation when you want to use an unsupported multimedia type."
It works, Wessie, I've just tried it. :-)