Folder Password Guard(FPG) is a utility designed to lock or hide folders, it can be used to protect the specified folder.
FPG can lock the specified folder, user who want to open the folder must input the admin password. FPG can hide specified folder too. User must provide admin password to unhide it.
An example of FPG wide application is that you can lock or hide the personal folders by FPG when this computer is shared to other persons. Any body who used your computer can't browse your locked folder unless you give them your password. The password is encrypt by SHA1 signature algorithm, which can't been cracked.