[FilimoniC]

Сообщение от __etc

Средств управления GC в AS нет.

А вот это?

Package flash.system
Class public final class System
Inheritance System Object

....

gc () method
public static function gc():void
Language Version : ActionScript 3.0

Forces the garbage collection process.

For Flash Player debugger version only.
Player Version: Flash Player 9 Update 3.