WinHTTrack is the Windows GUI version of HTTrack (with a graphical shell) and
WebHTTrack is the Linux/Posix version of HTTrack (with a graphical shell).

The manual should work correctly, it may not be downloadable on all web sites
and that is normal.

Here is a guide to using httrack:
<https://esgeeks.com/como-clonar-sitio-web-con-httrack/>