Windows.getWindows(ureq.getUserSession()).setAttribute(CONTEXTHELPCHIEFCONTROLLER, cc);
Window currentWindow = cc.getWindow();
currentWindow.setUriPrefix(WebappHelper.getServletContextPath() + PATH_CHELP);
Windows.getWindows(ureq).registerWindow(currentWindow);
// finally dispatch the initial request
currentWindow.dispatchRequest(ureq, true);
} catch (Throwable th) {
try {
ChiefController msgcc = MsgFactory.createMessageChiefController(ureq, th);
// the controller's window must be failsafe also