OpenVMS username <username> already mapped to another DCE
 principal

        Explanation:

        OpenVMS username specified is already associated with another
        DCE principal in the DCE$UAF file.

        User Action:

        Specify a username that is not associated with a DCE princi-
        pal. Use the DCE$UAF utility to search the DCE$UAF file for
        usernames and associated DCE principal names.