I am writing a program that has an AIR front-end, but a back-end written in another language (Python, in this case). Since AIR can't invoke other executables, the relationship has to be the other way around, with Python running an AIR subprocess. How can I locate the user's AIR runtime? I'd like to be able to do this on Mac, Windows, and Linux.
(Ironically, this would be super easy if I could package the AIR debug runtime, but the licensing agreement requires that the user download the regular runtime themselves and run the installer.)