WebRCP

Hello, I'm learning WebRCP and try to use it with Elcipse RCP Hyperbola app. Here is my jnlp.jsp file:

<%@ page contentType="application/x-java-jnlp-file" %>
<%--
Dynamically generated JNLP-File
Author: Daniel Mendler
--%>
<%
StringBuffer codeBase = new StringBuffer();
codeBase.append(request.getScheme()).append("://").append(request.getServerName());
if (request.getServerPort() != (request.isSecure() ? 443 : 80))
codeBase.append(':').append(request.getServerPort());
codeBase.append(request.getContextPath()).append("/hyperbola/");
%>
<?xml version="1.0" encoding="UTF-8"?>
<jnlp
spec="1.0+"
codebase="<%= codeBase %>"
href="<%= request.getRequestURL() %>">
<information>
<title>Application loaded over WebRCP</title>
<vendor>Daniel Mendler</vendor>
<description>Application loaded over WebRCP</description>
</information>
<security>
<all-permissions/>
</security>
<resources>
<j2se version="1.4+"/>
<%-- Launcher --%>
<jar href="webrcp.jar"/>
<%-- OSGi configuration --%>
<%--<property name="osgi.instance.area" value="@user.home/paperdog"/>--%>
<property name="osgi.instance.area" value=""/>
<%-- <property name="osgi.debug" value="true"/> --%>
<%-- <property name="osgi.bundles" value="org.eclipse.core.runtime@2:start, org.eclipse.update.configurator@3:start"/>--%>
<property name="eclipse.product" value="org.eclipsercp.hyperbola"/>
<%--<property name="eclipse.application" value="org.eclipsercp.hyperbola"/>--%>
<%-- WebRCP --%>
<property name="webrcp.archives" value="archives/chat"/>
<property name="webrcp.appName" value="Chat Editor"/>
<property name="webrcp.appVersion" value="@buildId@"/>
<%--<property name="webrcp.sysArchives" value="archives/swt"/>--%>
<property name="webrcp.location" value="<%= request.getRequestURL() %>"/>
</resources>
<application-desc/>
</jnlp>


I'm using WebRCP v. 04 with Eclipse 3.2M4 on XP Professional OS.

When I start the app I get this message/exception
ClassNotFoundException: org.eclipse.core.launcher.Main.

Here are the question: