This program is a legacy, no longer in development, here is the latest, more advanced and better remake: https://sourceforge.net/projects/asmodat-folder-locker/
If you still want to use it, then choose version 1.2/1.3/1.4 it is more stable and safe then (v1.5).
Asmodat Files & Folders Master is free program for hiding your private foler and files. Program is crushing and repairing over 500 per second (don't depend on file size) and makes your files & folders unoppenable and undetectable...