Yes, you'll need to debug the VFP COM .exe (pdfrun.avfppdf) differently. you could call it directly from VFP to debug it.
>Hi,
>I try to debug from the main program wheree
>

>do case ... = 'pdf'
>   set step on
>   opdf = create("pdfrun.avfppdf")
>   ....
>

>
>but nothing shown.
>
>any ideas?