Hey Rod B,
Thanks.
The Lock means whether you have set up second password for this file/folder.
What is the perfect hidden tool in your mind? Can't see by any other programs? It is impossible.
Wise Folder Hider Free, is a free tool, just provide a simple way to hide file/folder, normally most people can't find the hidden file/folder, even if the Folder Option - Show hidden files, folders, and drives is selected. But, some advanced users can see the hidden file via special tool.
We have Wise Folder Hider Pro, it provides higher security, a hidden file even if be seen via a tool, but it can't be opened without your permission..