Does anyone know why no one made a 1-Click installer for Ruby 1.8.7 or
1.9? Is it that Ruby is used mostly by people using the Mac or Linux?
I believe the one click guy(s) didn't want to have to deal with binary
incompatibilities for 1.8.6 AND 1.8.7 , as well as didn't want to force
gem publishers to dual release binary extensions. Plus there were some
other oddities with 1.8.7 that made them leery of it.
Re: mostly used by Linux/mac...you got it. You can't even *run* the
test suite of 1.9.0p0 on windows. That's right--it hangs midtest.
Charlie Savage has been trying to help it come up to specs and...at
least run

And the core developers are happy to accept (good)
patches, but it's definitely not their highest priority.
That being said, I use 1.9 on windows and it works well and faster (for
everything except EventMachine, which is broken, and some other gems
that aren't yet 1.9 compat, since almost everyone still uses 1.8.6, so
windows specific gems are a tidge behind).
If you're interested in trying out later builds you could try a mingw
distro[1].
Good luck!
-=r
[1]
http://programming-gone-awry.blogspot.com/2009/05/ruby-19-one-click-installer.html