Hi, <snip> > eventmachine: > > updating eventmachine... > ERROR: ¨Âèéìå åøåãõôéîçå®®¨ÇåíººÉîóôáììåòººÅøôåîóéïîÂõéìäÅòòïò> ERROR: Failed to build gem native extension. > > c:/ruby/bin/ruby.exe extconf.rb update eventmachine > checking for windows.h... no > > nmake > 'nmake' is not recognized as an internal or external command, > operable program or batch file. Looks like eventmachine is a C extension. You either don't have a compiler installed, or your shell's environment isn't setup right. Therefore, it fails. Or did I miss the point of your question somehow? Regards, Dan