Several questions around the forum get asked repeatedly:
How to avoid false-positive Anti-Virus detection? Answered by AutoIt god himself
How to make AutoIt software safe from hacking?
How to prevent AutoIt software being de-compiled?
How to prevent exposure of native AutoIt code?
The general answers all go in the direction of (a) can't be done or (b) make it an .a3x script.
The Wiki contains a single entry under "compiler directives" and the Help File conta