Opening brower with URL of file contained in WebStart cache

Question

Hi all,
I've written a webstart application that needs to open a browser and show some help pages that are stored within the webstart cache.
I'm using the BasicService.showDocument() method to open the browser. My problem is that I don't know how to obtain the URL of the index.html that I want to show. The URL below is returning a URL that the browser does not understand:
URL: jar:file:C:/Documents%20and%20Settings/Dados%20de%20aplicativos/Sun/Java/Deployment/javaws/cache/http/D128.1.1.111/P9080/DMfupws/RMfup.jar!/help/index.html
private void showHelp()
    try
        // Lookup the javax.jnlp.BasicService object
        BasicService bs = (BasicService)ServiceManager.lookup("javax.jnlp.BasicService");
       // Get the URL of the help index
       URL jarURL = this.getClass().getClassLoader().getResource("help/index.html");
        bs.showDocument(url);
catch( UnavailableServiceException ue) {
               ue.printStackTrace();
}Anybody know if this is possible?
thanks in advance!
Craig

Answer 1

You HTML file is inside a jar file, of course a web
browser won't be able to open it. What you can do is
to save the HTML pages in a temp directory on the
local drive and point the browser to index.html in
that directory.Thanks for your reply.
I had thought that copying the files would be an option, however I just thought I'd ask to see if there existed an existing mechanism to perform this task.
Another option I tried was using Rachel (http://www.vamphq.com/resources.html) which is meant to simplify resource loading in Web Start. Unfortunately the openBrowser() method refused to work with Rachel specific class:// URL handler.
If anyone has had any success using Rachel to do this, please reply.