The GetDiskSerial.DLL is a standard 32-bit DLL file. 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 creat an encrypt number. The GetDiskSerial.DLL has already succeeded to get the Serial Number in Delphi, C++Builder, C#, Visual Basic, Visual Basic.NET, PowerBuilder and Visual Foxpro. Here you can download examples of above development language at this site.