VMS Help System Services, $IO CLEANUP (Alpha Only), Arguments  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 fandle

    OpenVMS usage:fandle
    type:         64-bit integer (unsigned)
    access:       read only
    mechanism:    by value
    A fandle, passed by value, returned by a previous call to $IO_
    SETUP.