uuSetup has four ways to protect the installation. Password Protection and Serial Number Protection with a built-in key list, you can distribute individual keys for every user. The third Protection is use the Key Maker to generate an encryption registration code with the user registration information, and send the registration to the end-uses to complete the install. The fourth Protection is based on the user's hardware signature. While install, the end-user send the hardware signature to you by phone or mail, and you then use Key Maker to generate registration code base on the signature, and send ti back to the end-user by mail.