How can i play Skyrim at 640x480 resolution?

i can play any game @640x480 but not skyrim. the launcher does not allow me to run the game at this resolution. (my graphics card is kinda weak xD). How do i play at this resolution?How can i play Skyrim at 640x480 resolution?
Open your "skyrimprefs.ini" file with Notepad.



The file is located here:

C:\users\YOUR USER NAME\my documents\my games\skyrim\skyrimprefs.ini



Find these two entries:

iSize W=1920

iSize H=1080



NOTE: The values may not be "1920" and "1080" but it doesn't matter because u are going to change them anyway.



So now go ahead and change the "1920" (or whatever resolution the "W=" value was) to "640" and the "1080" to "480".



Save the file by the "save" command and not the "save as" command so that it doesn't tack on a .txt at the end of the file.



Now the game should run in that resolution.How can i play Skyrim at 640x480 resolution?
Well, then, you can't play ANY game, now can you?



You're not going to be able to do this. Get a better freaking computer.