If neither MGLS_LICENSE_FILE nor LM_LICENSE_FILE is set, the installation process on Windows prompts you for a value. If you want to avoid the prompt for situations such as batch installation, refer to “CFGR_INI”.
For more information about the MGLS_LICENSE_FILE and LM_LICENSE_FILE variables, refer to “Environment Variables for Licensing” in the Mentor Standard Licensing Manual (mgc_licen.pdf).