From: Roger Pack Date: 2009-07-14T21:59:31+09:00 Subject: Re: can't install ruby-prof 0.7.0 or superior on windows > rake > RUBYARCHDIR=c:/ruby/lib/ruby/gems/1.8/gems/ruby-prof-0.7.1-x86-mswin32-6 > 0/l > ib > RUBYLIBDIR=c:/ruby/lib/ruby/gems/1.8/gems/ruby-prof-0.7.1-x86-mswin32-60 > /lib > extension > 'rake' n'est pas reconnu en tant que commande interne > ou externe, un programme ex�cutable ou un fichier de commandes. gem install rake? That being said, since you're using mswin32, it should "just install" d:\dev>gem install ruby-prof Building native extensions. This could take a while... Successfully installed ruby-prof-0.7.3-x86-mswin32-60 1 gem installed Wonder why it's trying to install 0.7.1? Regardless, one other route you could take would be to install mingw version of ruby + devkit, then you'd have a nice shiny compiler to throw at those binary gems. http://programming-gone-awry.blogspot.com/2009/05/ruby-19-one-click-installer.html =r -- Posted via http://www.ruby-forum.com/.