Outlook Express Protector is designed for controlling access to Outlook Express and its e-mail and address data bases. It does not encrypt protected files and folders, however no programs can get access to them when the program is active. When you try to start Outlook Express or open Address Book, the program requests you to enter a password to grant access. If a user does not enter a valid password or cancels the authentication dialog box, Outlook Express or Address Book will not be opened and the data files will not be accessible for any third-party applications. This means that if Outlook Express Protector is active, nobody can steal or spoil your data you have in your Outlook Express.