XDebug ne se charge pas sur Windows 7 64 bits PHP 5.4

J'ai php exécuté sur un serveur apache. J'ai téléchargé ce que je pense être la bonne xdebug dll compilée pour la version de php 5.4 64 bits de windows. J'ai thread de sécurité est activé et c'est à l'aide de VC9. J'ai téléchargé la dll et l'a placé ici:

C:\php5\extras\php_xdebug-2.2.0RC1-5.4-vc9-x86_64.dll

Voici ce que j'ai dans mon php.ini:

[xdebug]
zend_extension = "C:\php5\extras\php_xdebug-2.2.0RC1-5.4-vc9-x86_64.dll"

Au démarrage d'Apache, j'ai cette erreur:

[Wed Apr 04 17:01:56 2012] [notice] Parent: Received restart signal -- Restarting the server.
Failed loading C:\php5\extras\php_xdebug-2.2.0RC1-5.4-vc9-x86_64.dll
hild process is ending.
[Wed Apr 04 17:01:56 2012] [notice] Apache/2.2.22 (Win32) PHP/5.4.0 configured -- resuming normal operations
[Wed Apr 04 17:01:56 2012] [notice] Server built: Jan 28 2012 11:16:39
[Wed Apr 04 17:01:56 2012] [notice] Parent: Created child process 2120
[Wed Apr 04 17:01:57 2012] [notice] Child 2120: Child process is running
[Wed Apr 04 17:01:57 2012] [notice] Child 2120: Acquired the start mutex.
[Wed Apr 04 17:01:57 2012] [notice] Child 2120: Starting 64 worker threads.
[Wed Apr 04 17:01:57 2012] [notice] Child 5624: Released the start mutex
[Wed Apr 04 17:01:58 2012] [notice] Child 5624: All worker threads have exited.
[Wed Apr 04 17:01:58 2012] [notice] Child 5624: Child process is exiting
Failed loading C:\php5\extras\php_xdebug-2.2.0RC1-5.4-vc9-x86_64.dll

source d'informationauteur Jon Hargett