Registering the INF file format and fpGUI Documentation Viewer with Linux is pretty straight forward. Simply execute the following commands for a console window. Steps: ------ 1 $ cd <-- replace the the appropriate directory location on you system. 2. $ cp images/docview-48x48.png ~/.icons/docview.png 3. $ cp images/inf-book-28x48.png ~/.icons/inf-help.png 4. $ cd ~/.icons; ln -s inf-help.png application-inf.png 5. $ cp install/docview.desktop ~/.local/share/applications/ 6. $ cp docview-mime.xml ~/.local/share/mime/packages 7. $ update-mime-database ~/.local/share/mime/ You are done! ****** The rest is not needed anymore ******** Gnome now knows the mime type for *.inf files. Now to setup the new default icon Nautilus will show for *.inf files, you need to do these two steps. 8. $ mkdir ~/.icons/gnome/48x48/mimetypes 9. $ ln -s ~/.icons/inf-help.png ~/.icons/gnome/48x48/mimetypes/gnome-mime-application-inf.png Now you are all done!