>Hi,
>So far I couldn't figure out how foxpro or any other programming can protect the
>executable file from being copied. I mean how can an executable file put in a CD can read, that it has been installed once and cannot be installed anymore except for once.Apart form talking about the user's HD serial number(Also not including the third party software). Let's just say if I have made a program and publish it outside the internet, so what is for sale is a program put in a CD in market, how can a program protect itself from being copied twice.Is there an API function that can do this.
>
>
>Regards
>
>
>Syah N

Sorry, not possible! The film companies has spent billions of $ to get this functionality, but to no success so far.