I finally managed to get Github Hubot running on my Windows 7 64 bits machine. Thanks to Sean Copenhaver & Thomas Kahlow which pointed me to the correct direction on the ‘Run hubot on windows’ discussion.
Then start Powershell and create a new folder e.g. HubotWorking
npm install hubot
You should see the following output
Go on with the following
node .\node_modules\coffee-script\bin\coffee .\bin\hubot
And the magic!
You might want also to run it through JetBrains WebStorm 4.0, so here is the configuration you will need