Index: library/Zend/Controller/Dispatcher/Standard.php
===================================================================
--- library/Zend/Controller/Dispatcher/Standard.php	(revision 24859)
+++ library/Zend/Controller/Dispatcher/Standard.php	(working copy)
@@ -257,6 +257,19 @@
         }
 
         /**
+         * If we're in a module or prefixDefaultModule is on, we must add the module name
+         * prefix to the contents of $className, as getControllerClass does not do that automatically.
+         * We must keep a separate variable because modules are not strictly PSR-0: We need the no-module-prefix
+         * class name to do the class->file mapping, but the full class name to insantiate the controller
+         */
+        $moduleClassName = $className;
+        if (($this->_defaultModule != $this->_curModule)
+            || $this->getParam('prefixDefaultModule'))
+        {
+            $moduleClassName = $this->formatClassName($this->_curModule, $className);
+        }
+
+        /**
          * Load the controller class file
          */
         $className = $this->loadClass($className);
@@ -265,12 +278,12 @@
          * Instantiate controller with request, response, and invocation
          * arguments; throw exception if it's not an action controller
          */
-        $controller = new $className($request, $this->getResponse(), $this->getParams());
+        $controller = new $moduleClassName($request, $this->getResponse(), $this->getParams());
         if (!($controller instanceof Zend_Controller_Action_Interface) &&
             !($controller instanceof Zend_Controller_Action)) {
             require_once 'Zend/Controller/Dispatcher/Exception.php';
             throw new Zend_Controller_Dispatcher_Exception(
-                'Controller "' . $className . '" is not an instance of Zend_Controller_Action_Interface'
+                'Controller "' . $moduleClassName . '" is not an instance of Zend_Controller_Action_Interface'
             );
         }
 
Index: tests/Zend/Controller/Dispatcher/StandardTest.php
===================================================================
--- tests/Zend/Controller/Dispatcher/StandardTest.php	(revision 24859)
+++ tests/Zend/Controller/Dispatcher/StandardTest.php	(working copy)
@@ -77,6 +77,15 @@
         unset($this->_dispatcher);
     }
 
+    /**
+     * @group ZF-9800
+     */
+    public function testFormatModuleName()
+    {
+        $this->assertEquals('Test', $this->_dispatcher->formatModuleName('test'));
+        $this->assertEquals('TestFoo', $this->_dispatcher->formatModuleName('test-foo'));
+    }
+
     public function testFormatControllerName()
     {
         $this->assertEquals('IndexController', $this->_dispatcher->formatControllerName('index'));
@@ -471,7 +480,7 @@
     }
 
     /**
-     * @see ZF-3034
+     * @group ZF-3034
      */
     public function testIsValidModuleShouldNormalizeModuleName()
     {
@@ -535,6 +544,42 @@
         $this->assertTrue(class_exists($test));
     }
 
+    /**
+     * @group ZF-9800
+     */
+    public function testLoadClassLoadsControllerInSpecifiedModuleWithHyphenatedModuleName()
+    {
+        $front = Zend_Controller_Front::getInstance();
+        $front->addModuleDirectory(dirname(__FILE__) . '/../_files/modules');
+        $dispatcher = $front->getDispatcher();
+
+        $request = new Zend_Controller_Request_Simple();
+        $request->setControllerName('foo')
+                ->setModuleName('baz-bat');
+        $class = $dispatcher->getControllerClass($request);
+        $this->assertEquals('FooController', $class);
+        $test = $dispatcher->loadClass($class);
+        $this->assertEquals('BazBat_FooController', $test);
+        $this->assertTrue(class_exists($test));
+    }
+
+    /**
+     * @group ZF-9800
+     */
+    public function testDispatcherCanDispatchControllersFromModuleWithHyphenatedName()
+    {
+        $front = Zend_Controller_Front::getInstance();
+        $front->addModuleDirectory(dirname(__FILE__) . '/../_files/modules');
+        $dispatcher = $front->getDispatcher();
+
+        $request = new Zend_Controller_Request_Simple();
+        $request->setModuleName('baz-bat')->setControllerName('foo');
+        $response = new Zend_Controller_Response_Cli();
+        $dispatcher->dispatch($request, $response);
+        $body = $dispatcher->getResponse()->getBody();
+        $this->assertContains("BazBat_FooController::indexAction() called", $body, $body);
+    }
+
     public function testLoadClassLoadsControllerInDefaultModuleWithModulePrefixWhenRequested()
     {
         Zend_Controller_Front::getInstance()
Index: tests/Zend/Controller/_files/modules/baz-bat/controllers/FooController.php
===================================================================
--- tests/Zend/Controller/_files/modules/baz-bat/controllers/FooController.php	(revision 0)
+++ tests/Zend/Controller/_files/modules/baz-bat/controllers/FooController.php	(revision 0)
@@ -0,0 +1,50 @@
+<?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_Controller
+ * @subpackage UnitTests
+ * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: IndexController.php 24593 2012-01-05 20:35:02Z matthew $
+ */
+
+
+
+
+require_once 'Zend/Controller/Action.php';
+
+/**
+ * Mock file for testbed
+ *
+ * @category   Zend
+ * @package    Zend_Controller
+ * @subpackage UnitTests
+ * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class BazBat_FooController extends Zend_Controller_Action
+{
+
+    /**
+     * Test Function for indexAction
+     *
+     * @return void
+     */
+    public function indexAction()
+    {
+        $this->_response->appendBody("BazBat_FooController::indexAction() called\n");
+    }
+
+}