/sys$common/syshlp/helplib.hlb INITIALIZE, Qualifiers, /SHARE  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /SHARE (default)
       /NOSHARE

    Permits all categories of access by all categories of ownership.
    The /NOSHARE qualifier denies access to group (unless the /GROUP
    qualifier is also specified) and world processes.