flash exchange extensions: I'm having an issue creating an MXI that installs a handful of .as files into a
location that Flash CS3 projects can see on their default classpath.
Unfortunately, the default classpath for AS3 projects is
$(AppConfig)/ActionScript 3.0/Classes but this is not accessible from any of
the location tokens the Extension Manager knows about.

For previous releases I've been able to specify the default classes directory
via the $flash token in my MXI files but there's no longer a good way to do
this without explicitly specifying in a ReadMe where a user should install the
files...which kind of defeats the whole purpose of having the nice automatic
extension manager.

Has anybody else run into this and found any solutions? Thanks!

Nope - the only workaround I can see, which isn't all that helpful, is to pop
up a prompt asking the user where they'd like to install the classes. This, of
course, pretty much defeats the point of having the installer at all...