That is, I don`t understand:
"By default, URL Substitution rules will be applied to all links Offline Explorer is about to download. But if you want to load links as they are, but convert filenames that will be saved to your hard disk, uncheck the rule in the rules list. "
Presumably, whether checked or not, "convert filenames that will be saved to your hard disk" will occur.
So the difference must be "load links as they are" --
what does that mean? Don`t you ALWAYS have to request the link in its original form, or else the server won`t understand it?
The same unchecked rule will load aa.htm but save it bb.htm.