I *think* that you can do it in AIR 2 - it has something called native process, which should be able to launch another application - sorry, I really don't know the details. Maybe Zinc or SWFStudio can do this... I think that Zinc can launch native application as a process and have some means of control over it... But, never tried that. Another idea - if you can tell the user to launch an application along with your AIR app or, maybe write a launcher that would open a socket, starts the AIR app / projector, and then let the projector connect to that socket and tell the other application to "beep" or something of that kind...
Best. Oleg
