From Friday Software:
File Securer is designed to protect your sensitive folders and personal files. The program embeds protection into the Windows system kernel, both in command and window modes. File Securer lets you lock your folders and files anywhere. The locking and unlocking object functions are integrated into the system menu. Select an object, right-click the mouse, and click lock or unlock. If someone wants to access your locked object, the system will ask for a password. The tools will record the error passwords and the user, and then report to you Version 3.95 updates the bad file links list ands updates strong file database support and the password require function.