I've never used Flex in my Flash projects, I just use straight AS3 with FlashDevelop. Requires the Flex SDK to compile but none of the code. You do not need to

I've never used Flex in my Flash projects, I just use straight AS3 with FlashDevelop. Requires the Flex SDK to compile but none of the code. You do not need to purchase anything from Adobe to compile a AS3 project. edit: I don't mean for this post to be as negative sounding as it may appear, it's not a comment on your abilities.