title: dll in php "the specified module could not be found"
body: <p>I am having trouble with PHP extensions. I am trying to run a script and nothing happens then I checked my error log and here is what I got:</p>
  
  <pre><code>PHP Startup: Unable to load dynamic library 'C:\Program Files (x86)\PHP\ext\php_oci8.dll' - The specified module could not be found. in Unknown on line 0
  </code></pre>
  
  <p>same goes for following files:</p>
  
  <pre><code> php_oci8_11g.dll
   php_pdo_oci.dll
   php_sybase_ct.dll
   php_com_dotnet.dll
  </code></pre>
  
  <p>every file except php_com_dotnet.dll was installed with PHP installation, all the files are enabled in php.ini configuration. After researching online I saw some people said that it has to be copied to system32 or sysWOW64 folder, which I did without success. Then I tried to register them using regsvr32 in cmd and I am getting error for every single file:</p>
  
  <pre><code>"The module name_of_the_module.dll failed to load"
  </code></pre>
  
  <p>I don't understand what am I doing wrong.</p>
  
  <p>Server configuration is Windows 2008 R2 64bit, IIS7, PHP 5.3.27</p>