Bug 166001 The webpage can't be found in WebView, if "WebViewer.startup( null );" is not called.
Now I'm using a SVG viewer to preview report in designer, it need not a HTTP server. So I removed "WebViewer.startup( null );" from designer's initial process, but I found those "web view as ..." all can not open a web page.
viewer/org.eclipse.birt.report.viewer/src/org/eclipse/birt/report/viewer/utilities/WebappAccessor.java
{
		if ( !applicationsStarted )
		{
			
			return;
		}
		AppServerWrapper.getInstance( ).getAppServer( ).stop( webappName );
	}
	/**
	 * Returns the port number the app server listens on.
	 * 
	 * @return integer port number, 0 if server not started
	 */
	public static int getPort( )
	{
		try
		{
			return AppServerWrapper.getInstance( ).getAppServer( ).getPort( );
		} catch ( CoreException e )
		{
			return 0;
		}
	}
	/**
	 * Returns the host name or ip the app server runs on.
	 * 
	 * @return String representaion of host name of IP, null if server not
	 *         started yet
	 */
	public static String getHost( )