KeyGen Software License Key Generator allows you to add keyed licenses to your program in order to get benefits from it. The system is very similar to the key system used by the famous Kaspersky antivirus. The program generates a random number that will correspond to a key. It will then be opened in a text editor and saved to a file.
The keys to be generated can be configured to be case sensitive, include numbers or alphanumeric data. To apply it to your software include a documented section.