Real VNC software receives frequent patches to block hackers. Cracked versions are "frozen" and usually contain unpatched vulnerabilities.
If you have VNC Server 7.0.1, follow these steps to retrieve your license key link: vnc server 701 license key link
These versions used traditional 25-character offline license keys. Users could copy and paste these keys directly into the software application to unlock premium features. Real VNC software receives frequent patches to block hackers
Understanding VNC Connect 7.x Licensing: Official Access and Policy Changes vnc server 701 license key link