>Use my DriveInformation class from the Files section.
>
>Vlad
>
>>Is there a way to read the hard drive serial number. I'm planning to use it for a security system so the user cannot copy the app. to another machine.

Thanks for your reply. I've already found an API function that return all the info about a drive and implemented sucefully. Its name is getdriveinfo() on the kernel32 library. Thanks anyway!!!