>>Thanks, but .. What kind of commands or DLLs may i use?
>>I haven't tried anything like this.
>>
>
>Without knowing what you're looking for, it'd be hard to say. if you're looking for disk volume information, take a look in the File Section here on UT; there are a couple of things that will retrieve the volume id.

I think the volume ID is a software ID, and i want a hardware ID, like
a ROM data. This way, my software will be activated on each computer using a key that i can generate and which depends on the machine ID, not the hard drive.

Thank you.