ruby on rails + iis7

I'm attempting to setup Ruby on Rails on IIS7. I've been reading lots of guides, but this seems to be the only up-to-date version I can find:

http://blogs.msdn.com/dgorti/archive/2009/06/17/ruby-on-rails-with-iis-7-reloaded.aspx

Although I have set the correct network permissions (and even as a test given the everyone group full permissions for c:\ruby and c:{path to ruby app}) but still no joy.

I am stuck on IIS returning a http 500 error:

"HTTP Error 500.0 - Internet Server Error C:\ruby\bin\ruby.exe - The Fas开发者_开发百科tCGI process exited unexpectedly"

Can any Ruby / IIS guru help?

Many thanks,

Bob

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From the link you provided, it looks like they used the FastCGI ISAPI route. I haven't myself used IIS for ages but, according to the book "Deploying Rails Applications", using FastCGI could be a bit tricky and recommends using ISAPI Rewrite instead.