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Download VIA Port Devices Driver

Download cnc usb controller driver for free. System Utilities downloads - CNC USB Controller by and many more programs are available for instant and free download. Third-party driver packages in the driver store; Search for devices DevCon can search for devices on a local or remote computer by hardware ID, device instance ID, or device setup class. Change device settings DevCon can change the status or configuration of Plug and Play (PnP) devices on the local computer in the following ways: Enable a device.

Zadig is a Windows application that installs generic USB drivers, such as WinUSB, libusb-win32/libusb0.sys or libusbK, to help you access USB devices.

It can be especially useful for cases where:

  • you want to access a device using a libusb-based application
  • you want to upgrade a generic USB driver
  • you want to access a device using WinUSB

Note:'libusb-based' above means an application that uses either libusb, libusb-win32 or libusbK.


Updated 2020.03.28:

  • Zadig 2.5 (4.9 MB)

System Requirements:

Windows 7 or later.
Windows XP and Windows Vista are

Download Via Port Devices Driver Printer



Download the executable and run it — no installation is necessary.
If elevation is required, you will be prompted for it.

An usage guide for Zadig is available HERE.


The executable is digitally signed and the signature should state: 'Akeo Consulting'

Frequently Asked Questions (FAQ)

A Zadig FAQ is available HERE.

To provide feedback, report a bug or request an enhancement please use the github issue tracker. Or you can send an e-mail.


GNU General Public License (GPL) version 3 or later.
You are free to distribute, modify or even sell the software, insofar as you respect the GPLv3 license.

Zadig is based on libwdi which uses an LGPL version 3 or later license.

The executable is produced in a 100% transparent manner, from its public source, using a Visual Studio environment.


  • Version 2.5 (2020.03.28)
    • Fix .cat generation for some user directories with non western characters
    • Fix update check
    • Improve error reporting
    • Embedded drivers: WinUSB v6.1.7600.16385, libusb-win32 v1.2.6.0, libusbK v3.0.7.0 & usbser (native)

Source Code

  • libwdi 1.3.1 source (320 KB). Includes Zadig in the examples directory.
  • Alternatively, you can clone the git repository using:
  • For more information, see the github project.

Download Via Port Devices Driver Updater

If you are a developer, you are very much encouraged to tinker with Zadig/libwdi and submit patches.