Aspose.License

Aspose.License is an absolutely free .Net software licensing component which can check against preset license fields including License Name, Product, Company, Version, Expired Days, Expired Date, Owner Name, Organization Name, Assembly's Filename, Assembly's Company, Assembly's Product, Assembly's Version, Domain Names, IP Addresses, CPUs, as well as your own custom license fields as many as you expect. With it, you can store and distribute your licensing strategy via multi-level encrypted license files while manage issued licenses via XML.