title: XDebug not loading on Windows 7 64 bit PHP 5.4
body: <p>I have php running on apache. I have downloaded what I think to be the correct xdebug compiled dll for php version 5.4 64 bit windows. I have thread saftey enabled and it is using VC9. I have downloaded the dll and placed it here:</p>
  
  <pre><code>C:\php5\extras\php_xdebug-2.2.0RC1-5.4-vc9-x86_64.dll
  </code></pre>
  
  <p>Here is what I have in my php.ini:</p>
  
  <pre><code>[xdebug]
  zend_extension = "C:\php5\extras\php_xdebug-2.2.0RC1-5.4-vc9-x86_64.dll"
  </code></pre>
  
  <p>When I start Apache, I get this error:</p>
  
  <pre><code>[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
  </code></pre>