> > 3. all ok, downloading
> > 4. disconnecting from Internet
> > 5. Numbers in Links Scanned begins growing up very fast 
> > with each 'error -5'. why? 
> Becaue httrack gets 'unable to connect' or 'no route to 
> host' or 'dns error' errors due to connection outage and 
> attempt to retry the connections (which also fails), 
> increasing the number of tried links.
ok

> There are no real solutions except detecting per-OS 
> connection status (not easy to do, for example when you 
> have a NAT firewall which is 'down')
mm... where I can edit source(may I?) and disable increasing
the number of links on all errors?May be you'll add this feature as optional?
My internet line is disconnecting every 1 minute(Russia...)
and httrack is overloading through 20-30 minutes of work... 
:(