🚀 go-pugleaf

In article <1992Nov3.163821.3971@msdhsv.ingr.com>, 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.
|>   I am trying to hinder the piracy of my software as you might have
|>   guessed. If anyone has any info it would be greatly appreciated.
|> 
|>   Email is prefered. Thanks.
|> 
|> -- 
The serial number stands as a 32 bit number in the boot sector. It is
interpreted as a hexadecimal number. All programs except microsofts diskcopy
copy this number direct to the destination disk. Microsofts diskcopy modifies
these 4 bytes. You can also use any disk editor to change the serial number.
Norton Disk Editor displays these 4 bytes as "Serial number" so there is no problem
to change it.

Frank