Installing a virtual USB bus for Mastercam (often involving Sentinel HASP
) on modern Windows systems (like Windows 10/11 for Mastercam 2022) requires bypassing security features that block unsigned drivers. Core Installation Steps Disable Driver Signature Enforcement : Modern Windows will block virtual USB drivers by default. Command Prompt (Admin) bcdedit -set loadoptions DISABLE_INTEGRITY_CHECKS bcdedit -set TESTSIGNING ON
your computer. You should see "Test Mode" in the corner of your desktop. Disable Core Isolation (Windows 10/11) Windows Security Device Security Core isolation details Memory integrity and restart. Install the Virtual Bus Driver Navigate to your MultiKey or virtual driver folder. Right-click install.bat (or similar) and Run as Administrator Alternatively, use Device Manager
to "Add legacy hardware," select "Install the hardware that I manually select from a list," and browse for the Troubleshooting Common Errors How to Fix USB Error Code 39 In Windows 10/8/7 [Tutorial]
This component is part of the Hasp/Sentinel License Manager system used by CNC Software. If the Virtual USB Bus is missing or flagged with a yellow exclamation mark in Device Manager, Mastercam will not recognize the license (hardware key/Sim) and will not launch.
Here is a guide on how to install and troubleshoot the Mastercam Virtual USB Bus.
If Method 1 failed, or if Device Manager shows a yellow warning triangle under "Other devices," you must force the install manually.
C:\Program Files\Mastercam...) and ensure "Include subfolders" is checked.HASP.sys or Sentinel.sys file and install the Virtual USB Bus.The most reliable way to install the Virtual USB Bus is to use the official driver installer located within the Mastercam installation files.
C:\Program Files\Mastercam X7... or your DVD/Download extraction folder).Sim, Hasp, or Drivers.
HaspUserSetup.exe, Sentinel HASP Run-time Installer, or MastercamHASP.exe.HaspUserSetup.exe).The Virtual USB Bus driver is not Microsoft-signed for these older versions.
F8 (or hold Shift while clicking Restart).Troubleshoot > Advanced Options > Startup Settings > Restart.7 or F7 to select "Disable driver signature enforcement".Testbed Configuration:
Prerequisites:
bcdedit /set testsigning on)Provide (only if you ask): Windows version (7/8/10/11), Mastercam exact build (X7 / 2018 / 2019 / 2020 / 2021 / 2022), dongle vendor/model, and error text. I will give targeted commands and exact vendor download links.
If you want, I can produce a tailored step-by-step checklist for your exact Windows version and dongle vendor — tell me the OS version, Mastercam build, and dongle/vendor name.
Installing a Virtual USB Bus for Mastercam (spanning versions from X7 through 2022) is typically required when using software-based emulators or hardware keys that aren't natively recognized by modern Windows versions. This process ensures the "Virtual USB Multikey" appears correctly in your Device Manager, allowing Mastercam to verify its license and launch. Prerequisites for Installation
Before starting, ensure your system is prepared to accept unverified virtual drivers:
Disable Driver Signature Enforcement: Modern Windows (10/11) blocks unsigned drivers. You must enable "Test Mode" by opening a Command Prompt as Administrator and running bcdedit /set testsigning on, then rebooting. mastercam x72022 virtual usb bus install
Disable Antivirus/UAC: Temporarily lower User Account Control (UAC) settings to "Never Notify" and disable real-time antivirus protection to prevent the driver files from being quarantined. Installation Steps
The installation generally follows a manual hardware addition process:
Extract Driver Files: Unpack your emulator or driver folder (often named "USB-Emul" or "MultiKey") to a dedicated directory like C:\MultiKey. Add Legacy Hardware: Open Device Manager.
Select your computer name at the top, click Action > Add legacy hardware.
Choose "Install the hardware that I manually select from a list". Select "Show All Devices" and click Have Disk.
Point to Driver: Browse to your extracted folder and select the .inf file. Confirm the installation even if Windows warns about an unverified publisher.
Verify Installation: Check Device Manager under "System devices" or "Universal Serial Bus controllers." You should see Virtual USB Bus Enumerator or Virtual USB MultiKey listed without error icons. Common Troubleshooting Mastercam X7-2022 Virtual Usb Bus Error 39 - Google Groups
Mastercam X7 – 2022: How to Install a Virtual USB Bus for Legacy Compatibility
If you are running older versions of Mastercam—specifically ranging from Mastercam X7 to Mastercam 2022—you might find yourself facing hardware lock issues. Many legacy versions of this software relied on physical USB HASP (Hardware Against Software Piracy) keys or Sentinel HL dongles.
However, modern workstations often lack the necessary drivers to communicate with older keys, or users may need to move to a Virtual USB Bus (also known as a MultiKey or Virtual USB Emulator) to maintain workflow efficiency on Windows 10 or 11.
In this guide, we will walk through the process of installing a virtual USB bus for Mastercam, ensuring your software recognizes the licensing environment without physical hardware interruptions. Why Use a Virtual USB Bus for Mastercam?
Most Mastercam users transition to virtual bus solutions for three reasons:
Hardware Failure: Physical USB dongles can break or get lost. Port Availability: Modern laptops have limited USB ports.
OS Compatibility: Windows 10 and 11 often block legacy HASP drivers, necessitating a virtual interface to bridge the gap. Prerequisites Before Installation Before starting, ensure you have the following:
Administrative Privileges: You cannot install kernel-mode drivers without admin rights. Installing a virtual USB bus for Mastercam (often
Disabled Driver Signature Enforcement: This is the most critical step. Windows typically blocks unsigned virtual drivers.
The Emulator Package: Usually contains a .reg file (registry keys) and the vbus.sys or multikey.sys driver files. Step 1: Disable Driver Signature Enforcement
Windows will block the Virtual USB Bus driver because it is not "digitally signed" by Microsoft. Click Start > Settings > Update & Security > Recovery. Under Advanced Startup, click Restart Now.
After the reboot, navigate to: Troubleshoot > Advanced Options > Startup Settings > Restart.
Press F7 (or 7) to select Disable driver signature enforcement.
Your PC will boot normally, but now it will allow the installation of the virtual bus. Step 2: Clean Existing Drivers
If you have old Mastercam drivers installed, they may conflict with the virtual bus. Open Device Manager. Look under Universal Serial Bus controllers. Uninstall any "SafeNet," "Sentinel," or "HASP" devices.
Run a "Clean Up" utility if provided with your Mastercam installation media to wipe old registry paths. Step 3: Install the Virtual USB Bus Driver
Locate your Virtual USB Bus folder (often labeled as USB-Emul or MultiKey).
Run the Registry File: Right-click the .reg file provided with your emulator and select Merge. This tells Windows how to handle the virtual hardware. Install the Driver: Open Device Manager.
Click on your Computer Name at the top, then go to Action > Add legacy hardware.
Select Install the hardware that I manually select from a list (Advanced). Click Show All Devices > Have Disk.
Browse to your virtual bus folder and select the .inf file (e.g., vbus.inf or multikey.inf). Click Next and Finish. Step 4: Verification
Once installed, check your Device Manager again. Under Universal Serial Bus controllers, you should see a new entry: Virtual USB MultiKey OR Mastercam Virtual Bus
If there is a yellow exclamation mark (!), it usually means you forgot to disable Driver Signature Enforcement or the registry keys were not merged correctly. Step 5: Configure Mastercam Method 2: Manual Device Manager Install If Method
Launch the NHasp X utility (found in the Mastercam installation folder, usually C:\Program Files\mcamx7\nhasp.exe or the 2022 equivalent).
Set the SIM Type to HASP or NetHASP depending on your license type. Select Local.
Click Read. If the virtual bus is working, the utility will display your license information and maintenance date. Troubleshooting Common Issues
Mastercam "No Valid License Found": This usually happens if the Sentinel LDK drivers are missing. Even with a virtual bus, the software still needs the runtime environment to "read" the virtual port. Install the latest Sentinel HASP LDK Runtime.
Driver Disappears After Reboot: Windows may have re-enabled signature enforcement. You may need to put Windows into Test Mode permanently by running bcdedit /set testsigning on in an Admin Command Prompt. Summary Table: Version Compatibility Mastercam Version Typical Driver Used Best OS Environment X7 - X9 MultiKey 18.1 / VBus Windows 7 / 10 2017 - 2020 Virtual USB Bus Windows 10 2021 - 2022 Sentinel LDK / VBus Windows 10 / 11
Disclaimer: Always ensure you are in compliance with your Mastercam End User License Agreement (EULA). Virtual USB emulators should primarily be used for data recovery, hardware transition, or as authorized by your software reseller.
Installing the virtual USB bus for Mastercam versions ranging from X7 to 2022 typically involves a manual hardware installation through Windows to bypass the need for a physical HASP dongle. This "Virtual USB Bus Enumerator" acts as a bridge, allowing the software to recognize a digital license as if it were a physical hardware key. Installation Process To set up the virtual USB bus, follow these general steps:
Open Hardware Wizard: Press Win+R, type hdwwiz, and hit Enter to launch the Add Hardware Wizard.
Manual Selection: Choose "Install the hardware that I manually select from a list (Advanced)".
Device Type: Select "Show All Devices" from the list and click Next.
Load Driver: Click "Have Disk..." and browse to your emulator folder (often named USB-Emul_Win64 or similar). Select the vusbbus.inf file.
Verify Install: After completion, open Device Manager. You should see "Virtual USB Bus Enumerator" under the System Devices section. Troubleshooting Common Errors
Users frequently encounter specific errors when installing these drivers on modern operating systems like Windows 10 or 11:
Error Codes (3, 7, 39): These are often caused by Driver Signature Enforcement. To fix this, you must restart Windows in "Disable Driver Signature Enforcement" mode before attempting the installation.
Conflict with CodeMeter: If you are installing an older version like X7, newer versions of CodeMeter (the standard licensing service) can block the installation. You may need to uninstall the current CodeMeter, install Mastercam, and then reinstall the latest CodeMeter version.
Corrupt User Profiles: If the software fails to launch despite a "working" driver, deleting and recreating your Windows user profile has been known to resolve deep-seated registry or permission conflicts.
For official licensing, it is always recommended to use the latest Sentinel HASP/LDK drivers from the Thales Sentinel Support Page or the Mastercam Technical Support site. Drivers and Utilities - Mastercam