CrypKey Intelligent Hardware Sensing (CIHS) is a complex, stable and robust system that locks the license you provide to your customer to the Windows PC it is installed on. CIHS initially surveys up to 7 hardware identifiers on the customer’s PC. Based on those hardware numbers a mathematical calculation is performed and a resultant “locking code” becomes the lock for your software. A built-in tolerance factor allows your customer to make minor changes to the hardware without impacting the license while stopping major hardware changes such as copying to other computers.