I strongly recommend *not* using Windows for rails development, use a
linux distribution (eg Ubuntu) or Mac. If, however, you have
absolutely no choice then I believe that railsinstaller.org is the way
to go.
Rubynewbie, I'm not familiar with installing on windows, but I think your
installation might still be okay. The documentation generation step is
where things failed, but that happens after all the code is installed. All
the documentation is online, so you don't especially need to have it on
your computer (although it is nice to have).
Try creating a rails application following the instructions and see if it
still works. If it doesn't, then you could seek more direct help at the
places RailsInstaller suggests:
It was just a personal approach, i.e. I’d prefer to install the things knowing exactly what happens and and when.
Rails Installer seems to me (always personal) as a kind of ‘black box’. More of that, it seems to be the preferred way to install via RubyInstaller (the easiest way), see http://rubyinstaller.org/.
later on this year, when you give up trying to run rails nAtively on windows, i hope you rememer me, as the guy on the mailing list who suggested vagrant.