unless $keybd
$keybd = Win32API.new('user32.dll',
'keybd_event', ['i', 'i', 'l', 'l'],
'v')
$keybd.call(0x12, 0, 0, 0)
$keybd.call(0x0D, 0, 0, 0)
$keybd.call(0x0D, 0, 2, 0)
$keybd.call(0x12, 0, 2, 0)
end