final DynamicProperties systemProperties = ComponentUtil.getSystemProperties();
        switch (ua) {
        case IE:
            if (isLocalFile) {
                url = url.replaceFirst("file:/+", systemProperties.getProperty("file.protocol.winlocal.ie", "file://"));
            } else {
                url = url.replaceFirst("file:/+", systemProperties.getProperty("file.protocol.ie", "file://"));
            }

        DynamicProperties systemProps = new DynamicProperties(file);
        ComponentUtil.register(systemProps, "systemProperties");
        SystemHelper systemHelper = new SystemHelper();
        VirtualHostHelper virtualHostHelper = new VirtualHostHelper();
        KeyMatchHelper keyMatchHelper = new KeyMatchHelper();