How to cleanup after running a ActiveX-Lisp program?

I have written a fairly long ActiveX-Lisp program that opens multiple
drawings in Autodesk Map 2002, makes a selection set in each drawing and
exports the object data to an ASCII file.

Everything works beautifully first time but the second time, I run the
program causes AutoCAD to bomb out. Even if I do not run the program
second time, just switching to one of the open drawings (that my program
opened) itself causes AutoCAD to crash.

I suspect that this has something to do with freeing up the memory after
the program has run.

So, the question is - What is the correct procedure to follow regarding
cleanup after an ActiveX-Lisp program? Does every single object need to
be fed to the (vlax-releae-object..). Is there anything else needed? gc?

Any help is appreciated.

- Rakesh

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