How to set the path of Java run time environment for XAE?

Dear all,
    I'm using XAE on GNU Emacs 21.3.1 for Win32, and once it worked on
my laptop, but after I installed JRE 1.4.1, it brokes. It should be
class path problem or something, but I don't know how to solve it in
XAE, e.g. set java path explicitly in .emacs file. Is there anybody
kind enough telling how to set the path? Thanks in advance. The error
messages are:
java.lang.NoClassDefFoundError: Files\\Java\\j2re1/4/1_02\\lib\\ext\\QTJava/zip;C:\\jdk1/3/1_07\\jre\\lib;d:/Home/site-lisp/xae/java/lib/xae/jar;d:/Home/site-lisp/xae/xsl-engines/saxon/saxon/jar xae/XMLToolServer
apply_stylesheet file:///d:/Home/test.xml file:///d:/Home/site-lisp/xae/doctypes/docbook/styles/docbook/xhtml/docbook.xsl d:/Home/test.html
Exception in thread "main" 
Process *XML Tool Server* exited abnormally with code 1
    
Albert
-- 
Chun-Chieh Huang, aka Albert   | E-mail: jjhuang AT cm.nctu.edu.tw
暺靽                         |
Department of Computer Science | 
National Tsing Hua University  | MIME/ASCII/PDF/PostScript are welcome!
HsinChu, Taiwan                | NO MS WORD DOC FILE, PLEASE!

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