problem of opening file which name has chinese char

[ibear]

I use emacs23 under japanese windows xp sp3.
when I want to open some chinese named file, something maybe wrong:

1. If I open [Effective Emacs中文版.txt], emacs can open the file, but
the file name show on minibuffer is [Effective Emacs
\222\206\225\266\224\305.txt].

2. If I open [诺顿账号.txt], emacs can not open the file:

Debugger entered--Lisp error: (error "Can not read file:D%3a/%3f%3f%3f
%8d%86.txt")
  signal(error ("Can not read file:D%3a/%3f%3f%3f%8d%86.txt"))
  error("Can not read %s" "file:D%3a/%3f%3f%3f%8d%86.txt")
  ......

So
1. How can I fix it, to show the right chinese char on minibuffer?
2. How can I open the file?