Do any of you do multi threaded applications in VFP? If so what, if any, tools, tricks, hoops do you need to jump thru to make it work?

I've looked at the stuff on http://www.codeplex.com/mtmyvfp which is based on some work that Calvin Hsia did a while back. I can make it work "out of the box", but whenever I try to do my own code, it errors with "Error AfterCalling COM object" and I can't figure out why. Claude makes it sound like childs play to do multi threading in VFP, but, thus far it's nothing but a pain in the @@@.

I know about the multi threaded runtime version of the VFP dll. What's it for? Please don't say "multi threading" :)

Regards,
Mike.