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

       /DEMAND_ZERO (default)
       /DEMAND_ZERO[=per_page]
       /NODEMAND_ZERO

    For Alpha linking, enables demand-zero image section production
    for both executable and shareable images.

    Per-page enables the linker to perform demand-zero compression
    on Alpha images on a per-page basis. If this keyword is not used,
    the linker performs demand-zero compression on an image-section
    basis only.