On Mac OS X, the file called 'HID.bundle' is used to enable USB input device support. This file must placed in the same folder as the InqScribe application. If it is missing, foot pedals, gamepads, and other USB devices will not be recognized by InqScribe. If you've lost this file, you can get another copy by downloading the latest version of InqScribe. HID.bundle is part of the download package.

HID.bundle was required if you wanted to use foot pedals or USB devices with InqScribe 1.5. But as of InqScribe 2.0, you no longer need it.