>Often, not always, I get the above errors when trying to compile to an EXE
>for a particular project. A form in the project does reference a multi-
>threaded DLL I created from a class in another project (my first attempt, so
>this is the likely suspect at the moment). The only way I can build the EXE
>is to reboot the PC. Quitting Foxpro or using the Task Manager to halt
>processes and applications does not help. Any ideas what I have done to cause
>this? Thanks!

Sounds very much like the DLL is in use. Do you have anything else accessing it, like IIS?