A DLL run in the same process than the host. That mean that it share the same thread and the same memory space than the host. It is faster than an EXE, but it can crash the host if it goes bezerk.

A EXE run in it's own process. It have it's own thread and memory space. It can run on the same computer than the host or can be executed on a remote machine.

Because a EXE have it's own thread, you need that option to simulate a new thread in your application.

Hope that I cleared things up a bit.

>I really do not know enough to knowwhether I should go with EXE vs. DLL. When I built the com app, I read some stuff in VFP help but never really understood fully.
>
>Although I am reluctant to change, can you tell me something that would make me feel it would be just as well to be an EXE vs DLL?