> -----Original Message-----
> From: Ricardo Viegas [mailto:rviegas / inbox.com]
> Hi there!
> 
> In the Web there are a lot of references to the Windows 64bits version
> of Ruby (a.k.a. x64-mswin64), but I was unable to find the site where I
> can download it.


A quick Google yields:
http://www.garbagecollect.jp/ruby/mswin32/en/download/release.html

Think it through though... are you sure it's worth it?  Most Gems won't have
a pre-built
binary for win-x64 thus requiring them to be compiled before installation,
which can be
a major nightmare.  I'd personally recommend going with the installer and
devkit that can
be found at http://rubyinstaller.org/

Hope this helps!