>I have built a Multi-Threaded COM server DLL in VFP 6.0
>
>The target PC for my app has the VFP 6 runtime DLL's on
>it, and when my EXE attempts to instantiate the DLL,
>I receive the error:
>
>"Class Definition Not Found"
>
>
>The "OLE Public" checkbox is checked, and the DLL has been
>registerd.
>
>Also, other DLL's I'v created in VFP 6 are working fine.
>
>Anyone have any thoughts on this?

Have you tested this on your server? Rick Strahl suggests testing first in native VFP prior to testing from the client side.