radiant をwindowsにインストール

ruby系

下記の通り進めるが、ポイントはRedCloth を入れ忘れないこと
https://github.com/radiant/radiant/wiki/Installing-on-Windows

gem update --system
gem install rails
gem install cucumber --version "< 0.4"  # Cucumber 0.4.0 through 0.6.3 have an
                                        # incompatibility with Radiant.
gem install sqlite3  # Or a database that works for you
gem install thin  # Or a web server that works for you
gem install RedCloth -v 4.2 ―platform=x86-mswin32-60
gem install radiant

っと思ったら、msvcrt-ruby18.dllが無い！ってエラーでｔ