1 and 2: I didn't find such info on official help pages.
3) Does it mean that COMODO can not solve this task - to prohibit reading a file by an app and at the same time allow this app to update itself? Can it be a suggestion for improvement?
3) Does it mean that COMODO can not solve this task - to prohibit reading a file by an app and at the same time allow this app to update itself? Can it be a suggestion for improvement?