This special parameter is used by VSI and is subject to change. Do
    not change this parameter unless VSI recommends that you do so.

    LOAD_SYS_IMAGES controls the loading of system images described
    in the system image data file, VMS$SYSTEM_IMAGES. This parameter
    is a bit mask.

    The following bits are defined:

    Bit                         Description

    0 (SGN$V_LOAD_SYS_IMAGES)   Enables loading alternate execlets
                                specified in VMS$SYSTEM_IMAGES.DATA.

    1 (SGN$V_EXEC_SLICING)      Enables executive slicing.  Note that
                                executive slicing is always enabled on
                                x86 systems.

    2 (SGN$V_RELEASE_PFNS)      Enables releasing unused portions of
                                granularity hint regions on Alpha
                                servers.

    These bits are on by default. Using conversational bootstrap exec
    slicing can be disabled.

    LOAD_SYS_IMAGES is an AUTOGEN parameter.