Flash-Flex Integration: Coding With Flash Components in Flex Builder
In the last article on Community MX, we looked at how to use Flex Builder as the ActionScript 3 editor for a Flash-compiled project. But if you are using any Flash CS3 components, Flex Builder is unable to recognize those classes. In this article, we will take a look at how to get Flex Builder to recognize the Flash CS3 Component classes for editing ActionScript 3 files in Flash CS3 projects.

How do we get Flex Builder’s code assist to recognize Flash CS3 Component classes?
( I’ll give you a hint: you find all the fl.* class locations in the Flash CS3 installation directory, and reference them as external source paths in Flex Builder )
For the full, step-by-step explanation, the tutorial is available here on Community MX.