title: Cannot find php_sqlsrv extension - 5.3, threadsafe
body: <p>I've followed the answer to this question to the letter:</p>
  
  <p><a href="https://stackoverflow.com/questions/5425322/connection-between-mssql-and-php-5-3-5-on-iis-is-not-working">Connection between MSSQL and PHP 5.3.5 on IIS is not working</a></p>
  
  <p>I'm using XAMPP with threadsafe 5.3. I've copied the files to the extension directory (while leaving them in the /php folder) and I've added the extension lines:</p>
  
  <pre><code>extension=php_sqlsrv_53_ts.dll
  extension=php_pdo_sqlsrv_53_ts.dll
  </code></pre>
  
  <p>When I do this, Apache fails to start, giving me errors in <code>eventvwr</code> like:</p>
  
  <pre><code>Application popup: Warning : PHP Startup: Unable to load dynamic library
  'C:\xampp\php\ext\php_sqlsrv_53_ts.dll' 
  - The specified module could not be found.
  </code></pre>
  
  <p>Except, obviously, that that file DOES exist in that spot, and php.ini is pointed at that extension directory.</p>
  
  <p>What's the problem?</p>