From: Bosko Ivanisevic Date: 2010-09-16T15:25:11+09:00 Subject: Re: What OS do you use for Ruby development? On Sep 15, 10:33 pm, Ed Howland wrote: > Thanks, I understand now. So you install the DevKit (which contains > mingw) once. Then you can build gems with native extensions or other > extconf libraries. > > Sorry if this is OT, but I'd also like to ask if this can work with > RVM. If you install the DevKit, can you then use rvm to install (and > presumably compile)  other rubies? DevKit works with Pik on Windows. IF you follow instructions on http://github.com/oneclick/rubyinstaller/wiki/Development-Kit DevKit will be set up for each version of Ruby you have installed. You can manually add other versions (see Step 4) too. Regards, Boško Ivanišević