Oops... Please disregard my last post. For some reason, I only saw Steve's
first post and didn't notice that there was subsequent discussion. Duh.

Also, I poked around some more and note that hts-cache\new.txt has the url ->
filepath information that I was talking about. So I'm a happy camper.

At this point I would just suggest that HTTrack catch this specific error
condition and log an informative message rather than the generic serialization
error so folks can save some troubleshooting time.

Thanks for a great tool.