BTW, I also tried CARWINGS skin and noticed that the Chinese menu can be identified in menu.ini instead of exectbl.ini. It seems that RRconfig has no effect to menu.ini so even the previous version RRconfig won't corrupt the display on the skin. Both ANSI and Unicode menu.ini work fine.
Anyway, my issue was resolved with V1.18 RRConfig. Thank you mitchjs for your great and quick support