As you know we can't change resolution size using Adobe AIR. And that is a problem in old hardware where fill rate was low.
I got the answer to most of my problems.
With that tool you can change the screen resolution in windows using command line.
The idea would be to have that EXE somewhere in that project then, on start check current resolution, then call the stored resolution to be sent to that executable and change the resolution to whatever we want (and it's supported), then play the game fullscreen. Then on exit, restore the original resolution before closing the app.
That's a solution I am going to apply to my current game, the problem will come whenever the app crashes or they force quit. Any ideas for that? Is there any event we can use for those two?