test_com_error2.rb

require 'win32ole'

# Also possible using Daniel Berger's excellent windows-pr gem.
require 'Win32API'
CoInitialize = Win32API.new('ole32', 'CoInitialize', 'P', 'L')

threads = []
3.times do
  threads << Thread.new do
    begin
      CoInitialize.call( 0 )
      ie = WIN32OLE.new( "InternetExplorer.Application" )
      ie.visible = true
      ie.navigate( "http://google.com" )
      puts "OK"
    rescue Exception => e
      puts e.class
      puts e
      puts e.backtrace
    end
  end
end

threads.each {|t| t.join }