The Tetherscript Virtual HID Driver Kit (HVDK) is a professional-grade Software Development Kit (SDK) designed for Windows to emulate human interface devices like keyboards, mice, and joysticks via software.
How to Obtain: You can still acquire the signed drivers by downloading the 14-day free trial of ControlMyJoystick from Tetherscript. These drivers remain functional even after the trial period expires.
tetherscript/hvdk: Windows HID Virtual Driver Kit SDK - GitHub
Microsoft’s driver signing requirements have become draconian. Older HID simulators break with every Windows feature update. Tetherscript maintains WHQL certification for their driver package.
To reliably emulate a keyboard, mouse, or joystick, you need to create a virtual device that sits inside Device Manager. Windows treats this driver exactly like a physical USB keyboard. The Tetherscript Virtual HID Driver Kit provides the framework to do this without writing complex kernel-mode code from scratch.
tetherscript/hvdk: Windows HID Virtual Driver Kit SDK - GitHub
Tetherscript discontinued the product largely because Microsoft’s increasing security requirements for driver signing became too costly for a small developer to maintain. Key Features (Historical) Emulation:
Suddenly, a red warning flared. An active "Watcher" program was scanning for unauthorized hardware. Elara didn't flinch. She toggled the Tetherscript’s advanced stealth parameters, shifting the virtual device's hardware ID to mimic a standard-issue Logitech peripheral. The Watcher swept past, blinded by the perfect camouflage. "Got you," she whispered.
The Tetherscript drivers translated her high-level scripts into raw USB interrupt packets. There was no lag, no "emulation jitter." The server didn't stand a chance. It accepted the virtual keystrokes as gospel. Input: Admin_Override. Input: Disable_Bio_Lock.
