I'm mixing things now, since you're interested. :)

I built my data-processing object as a subclass of the Timer object (Define Class Processor as Timer OLEPUBLIC), made that .prg into a MTDLL, and put that into a COM+ server package. I then tried the same kind of multi-user banging that I did on the Pool Manager sample, and it didn't break. So far. :)

As long as I stick with the subclass of the Timer for my custom data-manip object, I get the best of both worlds because the object auto-yields to other processes, but the calling VFP .exe doesn't have to wait for it to synchronously return.... Is that right?

I have a side-question: When an object is instanced, is there any way for it to know what it's name is? I want to save a textlog named after the object reference, but right now since all objects have the same name, the log gets stomped on by everything else.