> Hmm, I change within the IIS the custom Errors property 
of 
> HTTP Error 404 from type 'file' to 'url' and send it to 
one 
> of my ASP pages '/error/eshow.asp?error_id=16&'. This is 
a 
> page that has the layout (including graphics) of the site 
> and it's working without any problem. I'm not sure 
whether 
> this creates a 200 page or still keeps the 404

Probably 200 - 404 pages (and other error pages) are NOT 
being scanned by httrack.
 
Unfortunately I can't really help - I only know Apache, and 
never used IIS.