> I am trying to download a website which has just one
> authentification i mean just a password.
<http://httrack.kauler.com/help/Authentication>

> to download. I also tried the tips where we have to
> change the proxy adress which has been collecting
Other than the captureURL, the HTT proxy must match your browser's - normally
none.

> (winhttrack
> -qwC2%Ps2u1%s%uN0%I0p3DaK0H0%kf2A25000%f#f -F
> "Mozilla/4.5 (compatible; HTTrack 3.0x; Windows 98)"
> -%F "<!-- Mirrored from %s%s by HTTrack Website
> Copier/3.x [XR&CO'2010], %s -->" -%l "fr, en, *"
> <http://password@mysite> -O1 "C:Mes Sites Web	est3"

it's User:password@site not password@site and only for http authentication.
When you open the url (no mind readers here - why are you hiding it) does the
browser pop up a login box? If not, then it's NOT http authentication.
You'll have to capture the login. And don't forget to filter out the log-out
url.