OL97: How to Password Protect a Personal Folder (.PST)

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To add a password to your personal folders, follow these steps:

1. Click Start, point to Settings, and click Control Panel.
2. In the Control Panel, double-click the Mail and Fax icon.
3. On the Services tab, click to select Personal Folders and click Properties.
4. In the Personal Folders dialog box, click Change Password.
5. Type your new password and verify it by typing it a second time.
6. Make sure that the "Save this password in your password list" check box is cleared (not checked). The prevents the password from being cached. You will need to type it each time you run Outlook.
7. After you have entered the password successfully, click OK three times.

The next time you start Outlook, you will be prompted to type a password before viewing the contents of the personal folder.