Hi,

I've released Windows x64 installer package for Rails.
It bundles a rack handler calling http.sys, named Ennou. So very native Windows
friendly pakcage (but you may build unbundled gems with VS2010).
Details on http://www.artonx.org/data/nougakudo/eman.html

Cheers

-- 
arton <artonx / yahoo.co.jp>