[Rails] Can't use rails_upgrade plugin on Windows due to missing fork() function

I'm on Windows....and I can't get anything to work with this plugin:
http://github.com/rails/rails_upgrade

If I run rake rails:upgrade:check, for example, I get this:

rake aborted!
fork() function is unimplemented on this machine

What a drag! I heard that Ruby's fork() function is unimplemented on
Windows...
DOES THAT MEAN I CAN'T USE THE PLUGIN?

If you have any insights, please helpppp!

--
You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group.
To post to this group, send email to rubyonrails-talk@googlegroups.com.
To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe@googlegroups.com.
For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.