def METHOD_NAME():
    """Return the path of the Windos system directory as a unicode string."""
    try:
        windll.kernel32.GetSystemDirectoryW.argtypes = [c_wchar_p, c_uint]
        windll.kernel32.GetSystemDirectoryW.restype = c_uint
    except AttributeError:
        return None
    else:
        path = create_unicode_buffer(256)
        plen = windll.kernel32.GetSystemDirectoryW(path, 256)
        return plen and path.value or None