How to activate Protection Keys on older systems. The License Manager Tool runs on Mac OS X 10.10 or higher. Note: LMT is automatically installed with Archicad. Note: When you buy a software key, it becomes available to you online, from your Company License Pool – a virtual repository where you can access all your purchased licenses. software-based protection key is a software-based license key.A hardware-based protection key is a physical keyplug: either WIBU or CodeMeter.The License Manager Tool (LMT) can be used to manage the keys you have purchased, whether hardware-based or software-based: As the user of Archicad or other Graphisoft program, you must have one or more protection keys, containing the appropriate license(s), in order to run the program.