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Once the license is validated and registered, hardware changes will be possible.

When a machine dependent license key is going to be registered in the system, the Machine ID in the license key must match the current Machine ID. HDD Serial: This option uses the primary hard drive serial number for the current computer.Be careful including this option if your customers usually change their network cards. MAC address should be unique among computers. MAC Address: This option uses the MAC address for the current computer.BIOS: This option uses the BIOS serial number for the current computer.

It is not a good idea to use only this option to generate the final Machine ID. Note that the CPU features are the same for all computers with the same CPU. CPU: This option uses the CPU features for the current computer.The following hardware items can be included to create the final Machine ID for a specific computer: WinLicense allows you to select which hardware items will be included to create the final Machine ID for a specific computer. The Machine ID for a specific computer can be taken from several hardware items. The function WLHardwareGetId allows you to retrieve the current hardware ID in a specific machine. You could also customized all this processing by making a special server that communicates with your application in order to retrieve your customer's Machine ID transparently.

This Machine ID will be set in a specific field (HardwareId field) in the generated license key. NOTE: To get the Machine ID of your customers, you will have to send them a special application that retrieves their Hardware ID. In this panel you can select the different parameters that WinLicense will use to lock machine dependent keys to a computer. Even if a registration key is leaked or stolen, that key will not work on other computers. The Hardware Lock panel is designed to prevent the use of a single registration key with different computers.