//VIEW HELPERS
$viewRenderer = Zend_Controller_Action_HelperBroker::getStaticHelper('ViewRenderer');
$viewRenderer->initView();

$view = new Zend_View(array('encoding' => 'utf-8'));
$view->addHelperPath('Zend/View/Helper', 'Zend_View_Helper');
$view->addHelperPath('YourPath/View/Helper', 'YourPath_View_Helper');

$viewRenderer->setView($view);