> So there is only on step to do: Move d4x into the non-free archive.
Take care: The fact that a work is non-free does not mean the Debian
project has license to redistribute it in the ‘non-free’ section. Many
works are so non-free that they cannot be legally redistributed at all
by the Debian project.
This part of the license seems to answer that question pretty clearly:
/* WebDownloader for X-Window
*
* Copyright (C) 1999-2002 Koshelev Maxim
* This Program is free but not GPL!!! You can't modify it
* without agreement with author. You can't distribute modified
* program but you can distribute unmodified program.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*/
ie; Not even a Debian Maintainer can modify the software to package it. So this software looks like a non-starter for inclusion in Debian, even in non-free.