> hoping that I could just get the information there.
There's a faint smudge of potentially relevant code
(Nam.naml$v_open_special, Nam.naml$v_search_symlink) in
recent Info-ZIP Zip code ([.vms]vms_pk.c). 3.1d (beta) seems
to be generally available:
ftp://ftp.info-zip.org/pub/infozip/beta/zip31d.zip