>>The current app i'm working on involves calling several dlls written in C++.
>>
>>These C functions operate on some files/directories created by the VFP program. Within the C program the user may select some or all of these files. After the C program processes these there are new files/directories created. We need to inform VFP what these are. There may be pre-existing files/directories that were processed earlier. We need the ability to inform VFP of the files/directories that were just processed.
>>
>create the c++ program as a .dll

Yes, have done that.

>use DECLARE in VFP to define the c++ functions

Yes, have done that in main.prg

>and from the c++ return a structure to a VFP character field

?, the c++ routines actually create windows, have a user interface, etc.
am simply calling the routines from a menu item procedure

ie. menu prompt Optimize procedure contains
OptimizerEntryPoint()

this program then does its stuff independantly from VFP.

I'm unclear how using c++ to return a structure would work.

Thanks, Kim