Jim,

> I need to think about the other details before I comment further, but
> allocating the APE out of heap rather than the shared region will
> definitely break the event manager on classic.

Okay, I have fixed my code to use the shared memory to allocate APE blocks.
And, as far as I can understand from the source files, the shared region
managed by the event manager can grow dynamically.

Still waiting for you futher comments.

Cheers,
Dmitry