Using workers for concurrency

Flash Player 11.4 and later, Adobe AIR 13.4 and later for desktop platforms

ActionScript workers make it possible to execute code concurrently, or in other words, to execute code in the background without interrupting the main code’s execution.

The ActionScript concurrency apis are available on desktop platforms only in Flash Player 11.4 and later, and AIR 3.4 and later. Concurrency is not supported in AIR for mobile platforms.