SKGL is a very simple licensing system that can be used to protect .NET Applications. If you enjoy it, please try Serial Key Manager (https://serialkeymanager.com/) - a licensing system as a service (SaaS).
This page is still under construction. Please see the CodePlex site in mean time: https://skgl.codeplex.com/
- 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.