> It cannot get larger like that:
> 000.gif to zzz.gif

Three characters of "zero to z" is something like 46,000 file request
combinations that HTTrack has to send to the server you are trying to get
files from.  If there is only ONE file, say "5c9.gif", then 45,999 file
requests are going to report an error.

Server administrators would get VERY annoyed VERY quickly, and the program
would get blacklisted.

It is not designed to be a tool for that.  I would like to see HTTrack's
respectability maintained.