🚀 go-pugleaf

john@fl_gator.b17a.ingr.com (John Eason) writes:

>Hello,

>  I noticed with DOS 5.0 that each floopy and hard disk has a unique
>  serial number. I would like to access this serial number from code.
>  If my code could check the number against a known serial number
>  I could detect whether the user has copied my code to another disk.

Forget it.

It would only work if the user copied your software with a COPY comand...
if he used DISKCOPY or any disk-duplication software, the serial number
would be copied as well.

My personal recommendation is that you avoid copy protection of any type - 
but if you absolutely have to, either look into weird reformatting
of selected tracks, or make the software require the user to have the manual
at hand.

Better yet - forget about copy protection - just make it shareware :-)

-frisk