I recently went back to some AS2 code and created a replica of the AS3 EventDispatcher in ActionScript 2.0. The code is based on Danny Patterson’s original EventBroadcaster code. I tried my best to match the syntax of the AS3 events package. I have made it available for you to use freely.
Note: I just wrote about this in my previous post about converting AS3 to AS2 but I wanted to repost it for easy search purposes.