>Hi,
> Could you tell me the URL of the white paper about Multithread DLL in VFP 6 ? I failed to find the web site.
>

You might start at http://msdn.microsoft.com/vfoxpro

The MTDLL is not a mechanism that will allow you to directly spawn multiple threads of execution within a VFP application; it does provide you with a mechanism to create a VFP in-porcess COM server that can service multiple client requests without blocking.

If you need to run several things in parallel within a VFP application, you'd be better off spawning multiple instances of VFP with the RUN /N command or through an API call. You would have to write your own code if synchronization between multiple processes were needed, regardless of whether you had called methods of an MTDLL multiple times from an application or if you can multiple copies of VFP at once.

>Thank you