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Reading all subvalues of key (Ruby recipe) by greg zakharov
ActiveState Code (http://code.activestate.com/recipes/578337/)

With Ruby you can make wonders ;) This snippet shows how to read all subvalues of a key at one time.

Ruby, 11 lines
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require 'win32/registry'
require 'pp'

Win32::Registry::HKEY_CURRENT_USER.open(
  'Software\Sysinternals'
) do |reg|
  reg.each_key do |key1, key2|
    val = reg.open(key1)
    pp val.inject([]) {|i, j| i << j}
  end
end
Tags: registry