Installing IBMPC Font

I am trying to install the NFO Viewer in DirOpus8 and unfortunately (my stupid?) I do not seem to be able to figure out how to install the font so that the plugin will work. I have the nfo dll in the "viewers" directory and the plugin shows up and is checked as active. Each time I click on a nfo file extension, a message pops up saying I do not have the IBMPC font installed. Any help appreciated....TIA
Goody :frowning: