Searching for campaign protector

OK - at last some free time :)
Now at long last I'm ready to release BQ [check out in sig] (if no more bug reports come). OK - enough of advertising my campaign ;)
The point - I need a good campaign protector.
Heavy locker seems to make my campaign unplayable (when I lock my maps - they all go well except when I try to run them from a w3n campaign file)
So are there any other good lockers or ways in which I could make my campaign non-editable? (but playable of course :) )

Martinez