Why many barge up against exception when run a simple example?

[email protected] Fri, 15 Dec 2006 10:59:48 +0800

Newsgroups	gmane.comp.mozilla.jrex
Message-ID	<[email protected]>

Hi all,

Exception in thread "main" org.mozilla.jrex.exception.JRexException
     at org.mozilla.jrex.xpcom.JRexXPCOMImpl.startXPCOM(
JRexXPCOMImpl.java:143)
     at org.mozilla.jrex.JRexFactory.startEngine(JRexFactory.java:222)
     at com.JRexExample.main(JRexExample.java:35)
Caused by: java.lang.UnsatisfiedLinkError: InitXPCOM
     at org.mozilla.jrex.xpcom.JRexXPCOMImpl.InitXPCOM(Native Method)
     at org.mozilla.jrex.xpcom.JRexXPCOMImpl.access$200(
JRexXPCOMImpl.java:45)
     at org.mozilla.jrex.xpcom.JRexXPCOMImpl$1.run(JRexXPCOMImpl.java:173)


why?

thanks.