(1) Make sure that vncserver is closed and the license wizard screen is not open
(2) Use our keygenpatch to patch the application.
    Example usage from terminal (use Admin/SUDO on systems required):
     'keygenpatch patch /path/to/vncserver/'                    -> Will patch the required files
     So on windows by default it would be:
     'keygenpatch patch "C:\Program Files\RealVNC\VNC Server\"' 
(3) Use our keygenpatch to generate your license and license file
     'keygenpatch license' -> Will generate a license and save it to license.txt for offline activation.    
(4) Run VNC again and under licensing choose to activate via file, providing it your license.txt
(5) Enjoy!