Information Rights Management: A DRM system available to users of Microsoft Office (versions 2003 and above). It allows users to secure documents and Outlook e-mail with users’ Microsoft digital certificates rather than passwords.

In Windows Vista, when you use Information Rights Management (IRM) functionality to create or to open a Microsoft Office document that has restricted permission, you may receive an error message that resembles the following:

Your Information Rights Management configuration is invalid and needs to be repaired. For more information contact your system administrator.

Note: This problem may also occur in earlier Windows operating systems.