How to diplay Unicode in Html Help Index & Table of Content

[LONG LU THANH]

Dear Sir/Madam,
 I read one message on website "
http://www.winehq.org/hypermail/wine-patches/2005/04/0004.html" about how to 
display unicode characters in Html Help Index & Table of Content. Could you 
please guide me more or please tell which Help Authoring tool that can be do 
it for me.
 Thanks so much!