> > Which location?> My conf file is at /etc/httrack.conf Everybody can 
> read it. Could some command-line options result in 
the 
> file not being read?
The file is being read only once, on the first call 
for a project (that is, when no hts-cache folder and 
doit.log was created for the project) - this allow to 
have a compatible file with other systems, whatever 
the configuration file is.
Try to restart a new project, and check the doit.log 
file - it should contains options from 
the /etc/httrack.conf file.