> Seems to expire within a few hours with httrack:
> don't have that viewing online.
no clue.

> Understand.  I had done that but then when it
> started downloading more stuff than I was expecting
> from an external site I cancelled it, changed the
> options, set update, and restarted it.  At which
> point it started redownloading large zips it already
Once you cancel, anything not yet processed is lost from the cache (since
3.4x) Therefor they are redownloaded since they are not in the cache. 
Work around: cancel completes, delete hts-cache\new.* and rename old.* to
new.*