Inside the driver's .reg file or configuration multikey.cfg, you can define several keys:
[Key 1] VID=0x0529 PID=0x0001 Data=xxxxxxxx
[Key 2] VID=0x1A40 PID=0x0101 Data=yyyyyyyy
When the driver loads, Windows sees two separate USB devices. This is essential for companies running software suites that require different license dongles for different modules (e.g., CAD + CAM + Simulation).
| Issue | Workaround |
|-------|-------------|
| Driver signing – Windows 10 enforces EV signing for kernel drivers | Use test mode (bcdedit /set testsigning on) or purchase EV certificate |
| Hyper-V conflicts – Nested virtualization may break timing | Disable Hyper-V or use VMware with VT-x/EPT |
| Anti-tamper detection – Some software checks for VM or virtual USB | Use hardware-level passthrough (e.g., USB/IP with real dongle) |
| Power management – Sleep/hibernate may detach all virtual keys | Set service to restart on resume |
| Windows Update – May break driver compatibility | Block driver updates via Group Policy | virtual usb multikey driver windows 10
| Error | Solution |
|-------|-----------|
| Code 52 (Unsigned driver) | Use Method 1 or 2 above. |
| Device cannot start (Code 10) | Run devcon.exe remove *multikey* then reinstall. |
| BSOD (PAGE_FAULT_IN_NONPAGED_AREA) | This driver conflicts with modern memory management. Try VirtualBox or an older Windows 7 VM instead. |
| Driver works but software doesn't detect it | Reinstall the application after the driver is installed. Some apps check on launch only. |
| Feature | Description |
|---------|-------------|
| Multiple Key Emulation | Emulates up to 128 virtual USB keys simultaneously, each with its own unique vendor ID (VID), product ID (PID), and serial number. |
| HID & SmartCard Support | Supports HID-class (HASP/Sentinel) and CCID-class (smart card-based keys). |
| Persistent Storage | Virtual key data (licenses, memory contents) saved in encrypted .vusb files. |
| Dynamic Attachment | Hot-plug/unplug virtual keys via CLI or GUI without rebooting. |
| Windows 10 WHQL-compatible | Uses signed kernel-mode driver (test signing optional for development). |
| Low Latency | Response time < 1ms for HID transactions. |
| Isolation | Each virtual key runs in isolated memory space — failure of one does not affect others. | Prototype in user-mode:
If Windows 10 continues to block the driver (e.g., after a major update), consider:
The Virtual USB Multikey Driver for Windows 10 is a powerful but aging tool. When configured correctly (Test Mode + patched v7.2 driver + disabled Secure Boot), it is remarkably stable. However, for mission-critical environments, migrating to physical USB-over-IP hardware or vendor-supported licensing is the safer long-term strategy. Develop kernel driver: