Locating and deleting the preferences file on I7 for Windows

Does anyone know where the preferences file is saved on I7 for Windows? I accidentally changed to an unsupported font (immediately crashing the application) and now my I7 application crashes even after being uninstalled and reinstalled into a different directory. I’ve already filed a bug report (inform7.com/mantis/view.php?id=733), but I’m trying to get up and running again rapidly because I’m working on an IFComp entry.

Thank you in advance for any help you can give.

DavidK responded to my bug report and walked me through using regedit to delete the necessary key.

David, if you see this - a thousand thank yous! (It seemed declasse to say so in my bug response, but… HUGELY grateful.)