Steve, do you think it's OK to abandon localization for exception messages? If so, should we be using English for all FormatMessage calls? It's a bit ugly that Python's exceptions and the CRT error messages are in English, but then whenever we call FormatMessage with LANG_NEUTRAL/SUBLANG_DEFAULT we're getting localized error text. For example, the import error in the following case has a mix or Russian and English:

    import io, sys, ctypes
    kernel32 = ctypes.WinDLL('kernel32')

    MUI_LANGUAGE_NAME = 8
    kernel32.SetThreadPreferredUILanguages(MUI_LANGUAGE_NAME, u'ru-RU\0', None)
    kernel32.SetConsoleOutputCP(1251)
    sys.stderr = io.TextIOWrapper(open(r'\\.\con', 'wb'), encoding='1251')
    open('blah.pyd', 'w').close()

    >>> import blah
    Traceback (most recent call last):
      File "<stdin>", line 1, in <module>
    ImportError: DLL load failed: %1 не является приложением Win32.