OpenVMS utilities and commands that do not support the ODS-
    5 volume structure cannot handle extended file naming. These
    utilities and commands should be used carefully under Extended
    File Specifications because they may not function successfully
    on ODS-5 volumes even when they only encounter traditional file
    specifications.

    The following table lists the OpenVMS utilities and commands
    that do not support Extended File Specifications because of
    limitations with either handling extended file names or the ODS-5
    volume structure.

    Component              Notes

    No ODS-5 Support

    Disk defragmenters     Unsupported unless a specific
                           defragmentation tool documents that it has
                           been updated to support an ODS-5 volume.

    No Extended File Naming Support

    Code compilers         Cannot use extended file names for object
                           files. However, code compilers can create
                           applications that support extended names.
    INSTALL
    Known images           Do not rename to an extended file name.
    LINK                   Cannot output an image with an extended
                           file name.
    Network files          Do not rename to an extended file name.
    (NET*.DAT)
    Object modules (.OBJ)  Do not rename to an extended file name.
    Page and swap files    Do not use an extended file name.
    SYSGEN                 Do not write a parameter file with an
                           extended file name.
    System startup files   Do not rename to an extended file name.