Abstract: Whenever any customer purchase any software application (product) from vendor then customer needs serial key or product to start application, this serial key is provided by the vendor of software application but sometimes some users cracks this serial key and uses the features of software application without any permission of vendor that is against the policy of software company. But some users are having different techniques, they purchase single license from the vendor and uses the application in multiple machines or network that is also against the policy of Software Company. In this paper we proposed License file generator using MAC address of the system that will provide security against piracy of the software application.

Keywords: MAC address