I found cool article on [Creating cross platform GUI's with IronRuby](http://iqueryable.com/2008/05/20/CreatingCrossPlatformGUIsWithIronRuby.aspx) where someone re-created the [Shoes](<http://en.wikipedia.org/wiki/Shoes_(GUI_toolkit)> DSL by [\_why the lucky stiff](http://en.wikipedia.org/wiki/Why_the_lucky_stiff) in IronRuby.

Awesome right! 

So, I downloaded the [IronRuby binaries](http://www.ironruby.net/Download) and the [code from the article](http://iqueryable.com/ct.ashx?id=d593013f-15cb-462d-9d2e-5c0a5e10fd30&url=http%3a%2f%2fiqueryable.com%2fcontent%2fbinary%2fIronRubyDemos.zip) and ran the following command:

```
c:\IronRuby\bin\ir hello_world.rb

```

But I get the following error:

```
:0:in `require': no such file to load -- Microsoft.Scripting, Version=1.0.0.2000 Culture=neutral, PublicKeyToken=null (LoadError)
        from ./shoes.rb:5
        from hello_world.rb:1
        from :0:in `require'

```

How do I get these sample apps to run?