- Install v20.0.0.42 installer.

- Open VMix from desktop shortcut and register "Basic" Edition with any bogus email. You must enable Basic Edition first, to proceed!

- Open once and close it.

- Replace both fixed files in the program directory.

- Block vMix in firewall for both incoming and outgoing connections.

- Open vMix, it will turn into Pro version with no expiration. Whatever day you replaced fixed files, it will show Pro will expire 365 days later and so on. You will have all Pro features enabled. Just don't update!