Thanks for the quick response :)

Please keep up the good work, I really rely on this package 
as everything else I have tried has failed me in one way or 
another.

I have been using httrack consistently for years now (while 
the competition gets installed, tested and uninstalled) and 
will continue to do so.

As this package is GPL, have you considered using QT as the 
GUI toolkit? Then you could have one source tree that can 
be compiled on Windows, Linux and MacOS?
Dev Null