Best install 64 bit versions of everything.

• install cygwin, with packages make, git, gettext, gettext-devel
• install the latest Python 3.x under Windows
• Open a Windows cmd.exe with admin privileges and type:
  pip install matplotlib nose cheroot webob sphinx pillow PyQt5 PyQtWebEngine googletrans gtts pyinstaller
• install InnoSetup http://www.jrsoftware.org/isdl.php
• download mplayer: http://mplayerwin.sourceforge.net/downloads.html and copy it to
  C:\Program Files (x86)\mplayer.exe so that the subsequent scripts pick it up.

To run a version for debugging purposes, type 'make'. To create an installer, type 'make windows-installer'.