Archive expiration is the sum of the ARCHIVE_DATE as seen in the
ARCHIVES table, plus the RETVer value of the management class to
which the files are bound.  The pertinent date can change during
importation via the Dates parameter of IMport Node.  If you are
importing Archive files and not also importing their original
management class, then the default management class will pertain *if*
it contains an archive Copy Group, else the domain ARCHRETention will
pertain.

   Richard Sims   at Boston University