>>I have a compiled a multi-threaded dll in VFP and registered that dll in COM+.
>>When i look at the properties I see the threading model is Single Thread Apartment and i can't enable object pooling.
>>
>>Is this right? Can't i enable an object pool for my dll?
>
>Object pooling is only available to C++ - created DLL's. (free-threaded model)

This is what a microsoft article sais:

For Transaction Server to create the pool of running instances, COM components must support apartment model threading. Visual FoxPro 6.0 COM components are apartment model threaded and fully support Transaction Server. Developers can build middle-tier COM components with Visual FoxPro 6.0 and scale them to hundreds of users and more.

URL: http://msdn.microsoft.com/vfoxpro/prodinfo/evaluation/performance.asp