> > so i can type: httrack <projectname> and httrack
> will then
> > fetch it as if i had selected <projectname> in
> winhttrack 
> gui?> 
> httrack --continue -O
> "<projectpath>/<projectname>/"
> should do the trick.
> 

This didn't work for me...httrack merely ran and exited straight away. I'd
read somewhere to start in the <projectpath>/<projectname> directory so I
did.

Here's my output:
C:\My Web Sites\Offline support wiki
08:27:24 - Continuing any previously interupted run
"C:\Program Files\WinHTTrack\httrack.exe" --continue -O "C:\My Web
Sites\Offline support wiki\"
Mirror launched on Thu, 30 Nov 2017 08:27:25 by HTTrack Website
Copier/3.49-2+htsswf+htsjava [XR&CO'2014]

mirroring  with the wizard help..
Done.
Thanks for using HTTrack!
08:27:25 -

I also tried the path using the / as per the suggestion, i.e. unix format. no
joy.