Plug-in path: The path to the plugins that you created yourself.
Proxy for Web Connection: If you are behind a company firewall and only have restricted internet access, you have to configure the company proxy here to enable PCB-Investigator to get the needed connection.
Direct 3D Plug-in: If your graphic card has no 3D capabilities, an error would be thrown. To prevent this from occurring constantly you can deactivate 3D capabilities with this option.
Enable Debug Output: To get more comprehensive error descriptions in the "Error-Log" tab of the information panel in the left bottom corner of PCB-Investigator, you can activate this option.