Inf file can be only used to install driver files. That is right when it opens in notepad. From my readme file.
To install this driver package, make sure you are in "disable driver signature enforcement mode". Just go to device manager (right click computer in the start menu or right click on my computer on the desktop, left click properties, left click device manager, ok the user account control (if you have it enabled), (you might have to be adminstrator to install the driver as well) and on the device where it says "multimedia video controller", right click that, left click "update driver software", left click "Browse my computer for driver software", left click "Browse" and navigate to directory where the driver package is, press ok, and left click next, windows will install it, if a windows security box pops up just click "install anyways". Press close after it says sucessfully installed.
It should only display the inf file and basically reads the file and installs the .sys file in the appropiate place.