>  I use this application for very longtime. It is very 
> useful without any problem until today it crashed, no log 
> file. Here is what I capture from the screen:
> " A problem occured during the mirroring operation
> "The engine unexpectedly crashed"

Hum, this is the low-level handler. Which version of 
httrack were you using ?
> <http://www.djdenham.com/Basic_Windows.htm>

I'll try to spot the bug.. by the way, what are the last 
lines of your hts-log.txt file please ?