I really like the idea of gow but it's horribly unmaintained. Check the issue list length. You're probably better off installing Git with the "add gnu utilities to PATH" option ticked.
Yes. wget 1.11? It's not even funny. I understand author took last GnuWin32 release, but amount of changes in wget related to many things (including adequate https support) since 2008 is too big.
Moreover, using cross-platform Unicode-aware tools in (still not really Unicode-aware) cmd.exe will blow up sooner than later on “funny” filenames. As others said, you need proper shell and terminal.
Honestly, I'd recommend anyone to just install native GNU/Linux operating system. Getting the awesome, absolutely amazing coretuils to work on Windows seems like swimming upstream.
Moreover, using cross-platform Unicode-aware tools in (still not really Unicode-aware) cmd.exe will blow up sooner than later on “funny” filenames. As others said, you need proper shell and terminal.