WinHTTrack Website Copier is free software under the GNU GPL, version 3 or
later. See license.txt for the terms.

The complete corresponding source for this exact build:

  Windows interface  https://github.com/xroche/httrack-windows/tree/0822bbb40a0744c56a653407847d9ead11d738d6
  Engine             https://github.com/xroche/httrack/tree/c1b317421512050f35cab424bb8a35481ff0c4f7
  coucal (in engine) https://github.com/xroche/coucal/tree/7d21d4f33f56d3fc850e53451a7d00eb2771bfbf

Downloadable archives of those revisions. coucal has to be taken separately:
it is a submodule, so the engine archive carries an empty src/coucal.

  https://github.com/xroche/httrack-windows/archive/0822bbb40a0744c56a653407847d9ead11d738d6.tar.gz
  https://github.com/xroche/httrack/archive/c1b317421512050f35cab424bb8a35481ff0c4f7.tar.gz
  https://github.com/xroche/coucal/archive/7d21d4f33f56d3fc850e53451a7d00eb2771bfbf.tar.gz
