AntiDuplicate is an SDK for creation of USB hardware keys that allow to protect your applications against unauthorized use and illegal copying. With AntiDuplicate you prepare hardware keys (dongles, software protection tokens) from your ordinary USB flash drives (pen drives, USB memory sticks).

We use the term AntiDuplicate drive to refer to your USB flash drive after the process completes.
AntiDuplicate drive is a robust anti-piracy dongle or security key and the media for software distribution in the same device.

AntiDuplicate drives will contain unique information that is readable only by your application. Each instance of your application protected via AntiDuplicate has a key USB flash drive that must be plug into a USB port when your application is running.

AntiDuplicate is a tool for software developers in such programming languages as Microsoft Visual C++, C#, Visual Basic, VB.NET, PowerBASIC, Visual FoxPro, WinDev, PureBasic, REALBasic (REAL Studio), Free Pascal Compiler (Lazarus), Embarcadero & Borland Delphi, C++ Builder, HTBasic, Intel Visual Fortran.

AntiDuplicate SDK allows you to quickly and easily make USB hardware keys on any modern Windows computer.
AntiDuplicate Drive Maker
Important Features
  • Your SDK is exclusive. Your AntiDuplicate DLLs are compiled especially for you; encoding techniques are unique for each DLL.
  • Identification information cannot be destroyed by formatting of the AntiDuplicate drive.
  • USB drive's write protection at the hardware level(1)(2).
    If you choose this option, files and data on your USB drives cannot be changed or erased.
  • Your application can write and read your own encoded data (up to 1 KB) to/from the hidden USB drive's area(1).
  • AntiDuplicate drive can be created without any files and directories on it.
  • You can use callback functions, notifying your application that an AntiDuplicate drive is inserted or removed.
  • Using AntiDuplicate, you may distribute demo version of your application on USB key drives and transform it into commercial version remotely.
1. Only applicable to AntiDuplicate Professional Edition.
2. For some USB drive's hardware configurations.
System requirements
AntiDuplicate Drives
  • PC-compatible machine
  • Standard USB port with the default accessibility
  • Operating systems:
    Windows 2000/ XP/ Vista/ 7/ 8/ 10
    Windows Server 2003/ 2008/ 2012
End users of AntiDuplicate drives can be logged to Windows without administrative privileges.
No drivers, no special installation!
AntiDuplicate Drive Maker
  • PC-compatible machine
  • 20 MB hard disk space
  • Standard USB port with the default accessibility
  • Operating systems:
    Windows 2000/ XP/ Vista/ 7/ 8/ 10
    Windows Server 2003/ 2008/ 2012
AntiDuplicate Demo
AntiDuplicate Demo Edition allows you to create AntiDuplicate demo USB drives.
If you try to copy an original demo AntiDuplicate drive and start the test program, you'll see the message "This is NOT Original Drive!".
AntiDuplicate Demo can also be used to check for your USB flash drives compatibility with the drive write protection feature.

The system requirements for the Demo Edition are the same as for the AntiDuplicate Drive Maker (see above).
AntiDuplicate Demo description in PDF format:

Demo Version 5.2.0:   4.63 MB.
Click the button to download AntiDuplicate Demo Edition for free:
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