The Infinity IN-DB9 should come with its own Support Disc. Insert the disc in your computer and the proceed to its installation. Launch the software and follow the wizard. You might need to unplug then plug it back. Additionally, after this process access Device Manager (Start > Run > devmgmt.msc). Make sure the pedal is properly installed. It's usually found in the Sound category. If you see a yellow sign, right click it and select Update Driver. Make sure you are connected to the Internet and let it update itself. After this operation, the pedal should be detected. There is a possibility the driver wasn't installed properly because it's not compatible with your operating system.
