From what I understand it's possible to comunicate from Flash Builder to an embeded Flash application, but this requires some hooks to be coded into the Flash application. Is it possible to comunicate from Flash Builder to Flash without any code changes to the Flash application?
For example, let's say I have a Flash application that requires the user to press the space bar to start, and I want to make a Flash Builder application that puts a big "Start" button in the middle of the screen. When the user presses that big "Start" button, Flash Builder makes a call to the Flash application, mimicking a space bar press. Is it absolutely necessary for me to code the Flash application for this function?