Bus Error 39 Fix: Mastercam X72022 Virtual Usb

October 2025 Applies to: Mastercam X7, X8, X9, 2021, 2022 (and legacy versions using NetHASP/Codemeter emulation)

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\VUSBUS mastercam x72022 virtual usb bus error 39 fix