Sir according to GPL, source code should be available beside the binary for
download. But at most sites it is not. Same looks at your site, if I am not
mistaken. How it is possible. Or I have wrong understood of GPL. Can you
please tell where the source code is located at your site? Also please confirm
that for redistribution of a binary i.e., e.g., httrack-3.33.exe, is it
necessary to provide source code for downloading besides the binary?   Sorry
for inconvenience.