>>>
>>>I want to protect my software. How can i read any hardware ID which is different from one computer to other?
>>>
>>
>>here are all sorts of things like disk volume IDs that you can get at, and some manufacturers put an ID in their BIOS, but there's no standard AFAIK.
>
>
>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.