AFAIK, this info never was made public by MS.

>Hi
>
>I'm studying some encrypt-vfp software, want to write my own
>to protect my product.
>
>I found they modify p-code to prevent unfox, it's work.
>
>So, is there any other INFO about p-code of vfp for study ?
>
>Plz tell/teach me, any suggestion is very wellcome.
>
>Thank you very much.
>
>max.