I writted a course and ship it compiled in VFP 6.0
using getvolume to prevent the client from copy
my course to a another.


A problem happened:

Everytime my client formated his HD, he had to
call me to ask for a new password.


Then I aquired a program named hypermart HTML
The owner of hypermart says that the serial number
of HD does not changed even if HD is formated
so client will have no problem when format HD
because his password will be the same

Please take a look below to see if
I misunderstood what he says
because as far as I've learned, serial really changes


http://acrisoft.com/serial.jpg


He says serial does not change
Is he wrong ?

thanks

Moisés