Optional.
    UNIX equivalent: -h
    Default: Create a header file.

    Creates the C data definitions header file. Use the /TABLE
    qualifier in conjunction with this qualifier to generate a header
    file that supports dispatch tables.

    Mutually exclusive with the /CLIENT_STUBS_FILE, /DISPATCH_TABLE,
    /SERVER_STUBS_FILE, /TRANSPORT, and XDR_FILE qualifiers.