It's a conflict between console & HTTrack . 
Temporary Solution: Delete "-%F" from your command.

Regards,
Annajiat Alim Rasel

> Thank you very much for your answer.
> Presently, I'm trying to simplify the update
> process, using the very simple BAT as follows:
> c:Program FilesWinHTTrackhttrack --update
> <executed at the destination folder>
> 
> But does not work. The error message is:
> * Option %F needs to be followed by a blank space,
> and a footer string.
> I'm using Windows XP Pro.
> 
> Where is my mistake?> Thank you very much.
> 
> > 1. What is the exact text you used from hts-log?> > 2. What is the content
of you hts-log?> > 
> > Regards,
> > Annajiat Alim Rasel
> > 
>