You can test it on the registry editor import menu, I also tested in word 2007. All i can confirm really is that the original tutorial you wrote would not get rid of those specific folders in the libraries pane in all open and save menus in windows 7 64 bit version, I never checked 32 bit version. I later checked and found that the original tutorial you wrote did remove the folders in the open and save menu's.
So to sum it up the tutorials I wrote should be for 64 bit only to finish removing the folders.
While the tutorials you wrote get rid of it period for 32 bit and half way for 64 bit (Atleast as far as i can tell)