Even if you manage to find a workaround, the consequences are severe:
Ni Multisim 14.3 offers various licensing options to suit different user needs. These include: Ni Multisim 14.3 Serial Number
Open Multisim and go to Help >> About Multisim . The serial number is often displayed in the top-left corner of the "About" dialog box . 2. How to Activate Multisim 14.3 Even if you manage to find a workaround,
The search for an "Ni Multisim 14.3 Serial Number" is a fool’s errand. The numbers you find online are either invalid, stolen (and deactivated), or booby-trapped with malware. National Instruments has closed the loopholes that allowed serial sharing a decade ago. stolen (and deactivated)