It is worth noting that the introduction of license keys has been a subject of controversy within the VNC community. Some users have expressed concerns that the license key requirement restricts the free use of the software, while others argue that it is necessary to support the development and maintenance of the software.

The VNC project was initially open-source, with the source code freely available under the GNU General Public License (GPL). This allowed users to freely use, modify, and distribute the software. However, as the software gained popularity, the need for a more structured licensing model arose. In 2002, RealVNC, the company founded by Oliviero Teolato, introduced a new licensing model that included a license key.

In response to the licensing changes, some developers have created open-source alternatives to VNC, such as TightVNC and UltraVNC. These projects aim to provide a free and open-source remote access solution, without the need for a license key.

As the remote access landscape continues to evolve, it will be interesting to see how the VNC licensing model adapts. Will RealVNC continue to offer a free license, or will the company shift towards a more subscription-based model? Only time will tell.