Some time ago I managed to get RoR working on Windows XP. I\'ve been trying to get it working on Windows 7 for 2 days but there\'s just no way, there\'s always a problem, on
This is basically what I do to install on Windows 7:
Setup Devkit
cd [MY_DEVKIT_INSTALL_DIR]
ruby dk.rb init
ruby dk.rb install
Copy libmysql.dll from your mysql/bin install to C:\Ruby192\bin
gem install rails
gem install mysql2 -v 0.2.6
rails new my_test_app -d mysql