VMS Help System Services, $SETSHLV, Description  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    The Set Automatic Unshelving service controls whether a process
    automatically unshelves files.

    The pidadr and prcnam default to the current process. If the
    longword at address pidadr is 0, the PID of the target process is
    returned.

    The setting for automatic unshelving is inherited by
    subprocesses.

    The DCL command SET PROCESS/[NO]AUTOUNSHELVE also controls
    automatic unshelving for a process; refer to the OpenVMS DCL
    Dictionary for details.

    Required Access or Privileges

    Depending on the operation, the calling process might need one of
    the following privileges to use $SETSHLV:

    o  GROUP privilege to modify a process in the same group, unless
       the target process has the same UIC as the calling process.

    o  WORLD privilege to modify any process in the system.

    Required Quota

    None

    Related Services

    $GETJPI