Mario, You're not missing anything. Adblock Plus is not a program and thus does not have any entries in either "Program Files" or the "Program Files (x86)" folders.
The actual location of the Adblock Plus stuff is dependent on which browser you're referring to, and I'd be happy to try to locate it for you and can check on my Windows 7 machines if necessary. The reason I posted about the buttons in the browser is because the Options setting that pops-up or drops-down when you click it is generally how one interacts with Adblock Plus settings for a given browser. If you are able to get to that button give that a try, as it's safer to try to tweak things via the user interface rather than directly editing underlying files whenever possible. Brian
