Searching for "Mastercam Virtual Key Installer.exe" leads you to clickfarm websites. These sites use "Dark Patterns"—giant green "Download" buttons that actually download malware, adware, or browser hijackers. By the time you find the actual file, you may have installed five other viruses.
found in your Mastercam installation folder to confirm the license is "Active". Pro Tips for Success Drivers and Utilities - Mastercam Mastercam Virtual Key Installer.exe
The Mastercam Virtual Key Installer.exe installs a virtual driver (such as a Virtual USB Bus Enumerator). When Mastercam looks for a USB key, this virtual driver intercepts the request and responds with the exact cryptographic handshake a real USB key would provide. Searching for "Mastercam Virtual Key Installer