diff -r 000000000000 -r 4eba9c11703f web/Zend/Amf/Value/Messaging/AcknowledgeMessage.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/Zend/Amf/Value/Messaging/AcknowledgeMessage.php	Mon Dec 13 18:29:26 2010 +0100
@@ -0,0 +1,60 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Amf
+ * @subpackage Value
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: AcknowledgeMessage.php 20096 2010-01-06 02:05:09Z bkarwin $
+ */
+
+/** Zend_Amf_Value_Messaging_AsyncMessage */
+require_once 'Zend/Amf/Value/Messaging/AsyncMessage.php';
+
+/**
+ * This is the type of message returned by the MessageBroker
+ * to endpoints after the broker has routed an endpoint's message
+ * to a service.
+ *
+ * flex.messaging.messages.AcknowledgeMessage
+ *
+ * @package    Zend_Amf
+ * @subpackage Value
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Amf_Value_Messaging_AcknowledgeMessage extends Zend_Amf_Value_Messaging_AsyncMessage
+{
+    /**
+     * Create a new Acknowledge Message
+     *
+     * @param unknown_type $message
+     */
+    public function __construct($message)
+    {
+        $this->clientId    = $this->generateId();
+        $this->destination = null;
+        $this->messageId   = $this->generateId();
+        $this->timestamp   = time().'00';
+        $this->timeToLive  = 0;
+        $this->headers     = new STDClass();
+        $this->body        = null;
+
+        // correleate the two messages
+        if ($message && isset($message->messageId)) {
+            $this->correlationId = $message->messageId;
+        }
+    }
+}