--- Registry.create(key, subkey, desired = KEY_ALL_ACCESS, opt = REG_OPTION_RESERVED)
--- Registry.create(key, subkey, desired = KEY_ALL_ACCESS, opt = REG_OPTION_RESERVED) { |reg| ... }
    쥸ȥꥭ key ˥ subkey 
    ɽ Win32::Registry ֥Ȥ֤ޤ
    key ϿƤΥ Win32::Registry ֥Ȥǻꤷޤ
    ƤΥˤѥ HKEY_* ѤǤޤ (constants)
    
    ֥¸ߤƤХϤ졤created? [Win32::Registry/created?]
    ᥽åɤ false ֤ޤ
    
    ֥åͿȡϼưŪĤޤ

