SKGL is a very simple licensing system that can be used to protect .NET Applications. It's predecessor is Cryptolens (https://cryptolens.io) - a licensing system as a service (SaaS).

This page is still under construction. Please see the CodePlex site in mean time: https://archive.codeplex.com/?p=skgl

• Create and validate human-readable serial keys.
• Simple 20 characters format: MUYVD-LSEBY-CXHRQ-XFAGY.
• Add eight different features.
• Set a time limit. (Max 999 days).
• Lock a key for a specific machine.