> Comment indiquer le mot de passe du site web que je 
> veux aspirer.
> HtTrack devrait t'il me demander el mot passe quant 
> t'il arrive sur la page. ou dois-je l'indiquer dans 
> les paramètres?
Authenticated websites can be mirrored, using:
<http://username:password@www.yoursite.com/yourpath/>

The same goes for authenticated proxies 
(user:pass@proxy:port)

Note that neither formulars-based authentication, not 
proxy-challenged authentication, can be solved with 
this method (the first would require 'capture url' 
feature, the second is not yet supported)