C:\Documents and Settings\Owl>gem install mechanize
Building native extensions.  This could take a while...
ERROR:  Error installing mechanize:
        ERROR: Failed to build gem native extension.

c:/Program Files/ruby/bin/ruby.exe extconf.rb install mechanize
'c:/Program' is not recognized as an internal or external command,
operable program or batch file.


Gem files will remain installed in c:/Program Files/ruby/lib/ruby/gems/1.8/gems/
hpricot-0.6 for inspection.
Results logged to c:/Program Files/ruby/lib/ruby/gems/1.8/gems/hpricot-0.6/ext/h
pricot_scan/gem_make.out