> "local type structure" of:
> Html in the web / html, images / other in the web /
> xxx
> 
> qwC2% Ps2u1% s% uN5% I0p3DaK0H0% kf2A25000% f # fF

If you're using the GUI options -> build -> local structure
The command line is N4 see <http://www.httrack.com/html/fcguide.html>