No amount of tweaking will permanently remove the message. Crackers have attempted to patch the Mastercam.exe and Mastercam.dll files, but since Mastercam version 2022, the software contains remote kill switches that survive patches.
The only safe and legal fixes are:
Option 1: Purchase a Legitimate License
Option 2: Convert to a Trial License If you were previously genuine but let maintenance lapse:
Option 3: Legitimate Reseller Amnesty Program Some Mastercam resellers offer an "amnesty" program. If you voluntarily disclose a non-genuine copy and purchase a single annual subscription, they will waive back-licensing fees. This is far cheaper than a BSA audit. this copy of mastercam is not genuine
This is a false positive due to corruption or Windows changes.
Fix 1: Clean Driver Reinstall
Fix 2: Mastercam Repair Installation
Fix 3: Contact Your Reseller
Cracked post processors (.pst or .psb files) often contain manipulated license metadata. Always download posts from the official Post Processor Library or from your reseller.
Frequent culprits: Windows 10/11 feature updates overwrite the HASP drivers. Pro tip: On your netHASP server, set Windows Update to never update drivers via Group Policy (Computer Config → Administrative Templates → Windows Components → Windows Update).
The "not genuine" warning is not merely a suggestion—it is a security and licensing enforcement protocol embedded in Mastercam’s newer versions (2021 and later). When the software detects a discrepancy between the installed license and the expected validation parameters, it triggers this message.
In most cases, this means one of three things: No amount of tweaking will permanently remove the message
The message typically appears upon launch or during toolpath generation, and if ignored, it will eventually lead to read-only mode or complete lockout.
Possible reasons the non-genuine copy was present:
Mastercam is the industry standard for computer-aided manufacturing (CAM) software, powering everything from CNC milling machines to complex multi-axis lathes. However, users across the globe occasionally encounter a dreaded pop-up notification that halts productivity: "This copy of Mastercam is not genuine."
If you are seeing this message, do not panic. This article provides a deep technical dive into why this error occurs, the hidden risks of ignoring it, step-by-step troubleshooting methods, and the ultimate solution to restore legitimate functionality. Option 2: Convert to a Trial License If