I am also using HTTrack behind the ISA firewall & its gives me this error. I
hope you can give some suggestion.

Error is:

00:03:31 Error:  "Proxy Authentication Required" (407) at link
www.microsoft.com/technet/scriptcenter/guide/sas_ads_overview.mspx (from
primary/primary)
00:03:31 Info:  No data seems to have been transfered during this session! :
restoring previous one!

Khurram Muneer
Pakistan.