If a component is missing, you can add third-party folders via System > System Settings > Library Folders Demo Version:
Proteus Professional 8.17 is a comprehensive software suite developed by Labcenter Electronics for electronic design automation (EDA). This version introduces significant enhancements to its core modules—ISIS for schematic capture and ARES for PCB layout—while expanding its virtual system modeling (VSM) capabilities for modern embedded development. Key Features of Proteus 8.17 Proteus Professional 8.17