A licensing module for licensing protected software is disclosed. The licensing module may be operatively disposed on a gateway device that is operating between a computer and an IP-compliant network. In disclosed embodiments, the licensing module may be configured to detect the use of a protected software...http://www.google.com/patents/US20050273435?utm_source=gb-gplus-sharePatent US20050273435 - Firewall for licensing protected software on a computer
