If you have licensed LiveLink™ for PTC® Pro/ENGINEER®, you need to provide the installation path for PTC Pro/ENGINEER or PTC Creo Elements/Pro during the install process. The installer registers an add-in with PTC Pro/ENGINEER called LiveLink for COMSOL (5.2a). The add-in should be listed in the Auxiliary Applications dialog box that is accessible from the Tools menu in the PTC Pro/ENGINEER user interface. The add-in provides functionality for selecting dimensional parameters that can be synchronized with COMSOL.