When you are not sure if the user has a Flash Player installed or not (or you don't want to worry about it) you can load .swf inside the main projector as pellepiano said, and it will be viewed though it.
If you want to open it outside the first one, you can make it to be projector too and call it with fscommand:
on (release) {
fscommand ("exec", "my_second_projector.exe");
}
Hope this helps...
DD
Flash Projectors and Crossplatform CD Burning FAQ