Password Folder Pro takes a different approach than some folder hiding &/or encryption apps, but the GOTD version is either broken or the app just doesn't work when it comes to protecting your stuff. Rather than use a driver to tell Windows not to see a hidden folder, & rather than more-or-less storing a folder's contents in an encrypted ZIP file, Password Folder Pro moves the folder into a another folder the app creates, C:\pfdocument.. . They do make an attempt to hide or restrict access to that folder, e.g., if you try to rename or copy it Windows says it can't find that folder where it's supposed to be located, but if I double click it in File Explorer I can browse the contents to access the unprotected files in or for the folder I just [allegedly] encrypted. [In my Win7 32-bit VM where I tested, I do have view hidden files/folders turned on.] Searching for the sub-folder holding the supposedly encrypted files the only hit I get is in C:\pfdocument.. , so I don't *think* it's a hard link, e.g., C:\Documents and Settings.
Installing the app adds the program's folder; the ProgramData\pfonce.ini file; pafsound.dll, pafexp.ini, & paflan.ini to Users\ [UserName]\ AppData\ Roaming\. The registry gets an uninstall key, a key for the app itself, and new entries associating the .pff file name extension with the app, with a recorded total of 144 new registry entries.