Include 'samp.as' ignores Include folder?

It seems that “include” only looks in the host FLA files folder. Back in 8, I recall placing files in your (and I paraphrase:) “%profile%\local\appdata\flash\en\config\Include” folder allowed centralized access to as files. I really need this, I can’t have a few dozen copies of this file floating around the project structure when I need to make a change.

I see that an Include folder still exists, but I can’t include anything that’s in it, even the files that live there by default. Adobe help for CS3 indicates that this folder’s function remains unchanged, but I just can’t seem to make it go. Am I missing something here? This is a fresh load of Windows XP and CS4.

I know I can write a class that handles what I’m doing and just make it the document class; but I’d rather not. Any thoughts?

(I am also concerned that I’ll just run into the same problem with the Class folder refusing to play ball…)