Writing scripts for earlier versions of Flash Player overview

ActionScript has changed considerably with the release of Macromedia Flash MX 2004 and Macromedia Flash MX Professional 2004. When you create content for Flash Player 7, you'll take advantage of the full power of ActionScript. You can still use Flash MX 2004 to create content for earlier versions of Flash Player, but you won't be able to use every ActionScript element.

This chapter provides guidelines to help you write scripts that are syntactically correct for the player version you are targeting.