As a with a lot of things in the newer versions of windows (Looking at the controlless defrag in particular), They have a lot less power than they Windows 98 equivalents, to try to make things easier for normal users. I'm looking for a program - Other than Regedit - Which will allow me to edit the individual actions in a File Extension.
Here's the Windows 98 dialogue, in case people need a refresher (It was over a decade ago)