Allows software that requires a physical hardware key (e.g., CAD/CAM software, SCADA systems) to run without the physical device.

If successful, Windows Device Manager will show a new category called containing an item named Virtual USB MultiKey . The protected software should now launch without the physical USB key inserted. Risks, Legalities, and Safety Concerns

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[Windows Application (e.g., SolidCAM)] │ ▼ [Official Vendor Driver (e.g., Sentinel HASP Driver)] │ ▼ [Virtual USB MultiKey Bus Driver (multikey.sys)] <─── Reads Key Data from Registry (.REG) │ ▼ [Windows Kernel Emulating Physical USB Hardware]

: Because MultiKey is often an unsigned driver, you must reboot Windows into "Advanced Startup" and select "Disable Driver Signature Enforcement" (Option 7) to allow the installation.

MultiKey 18.1 X64 supports cross-platform emulation for several physical token standards:

Comprehensive Guide to MultiKey 18.1 X64: Advanced Emulation and Troubleshooting