GetDiskSerial.DLL is a standard Windows DLL that does not depend on the "support" libraries. You can use it to read the serial number of hard disk easily. As we all know, this serial number is unique in the world. So this DLL is of great use, for example, you can use this serial number to create an machine id or encrypt number. Key Features *Easy to obtain the serial number of hard disk. *Support reading several physics hard disks.