title: Apache: Unable to load dynamic library
body: <p>Apache 2.4.4 is not loading two modules.  The modules exist in the directory where it is looking.</p>
  <p>I'm using Windows 8.1, PHP 5.4.12, and a WAMPServer installation.</p>
  <blockquote>
  <p>[Thu Oct 20 19:12:33.092619 2016] [mpm_winnt:notice] [pid 6888:tid 548] AH00418: Parent: Created child process 3172</p>
  <p>PHP Warning:  PHP Startup: Unable to load dynamic library 'm:/wamp/bin/php/php5.4.12/ext/php_pdo_pgsql.dll' - The specified module could not be found.\r\n in Unknown on line 0</p>
  <p>PHP Warning:  PHP Startup: Unable to load dynamic library 'm:/wamp/bin/php/php5.4.12/ext/php_pgsql.dll' - The specified module could not be found.\r\n in Unknown on line 0</p>
  <p>[Thu Oct 20 19:12:33.319122 2016] [mpm_winnt:notice] [pid 3172:tid 448] AH00354: Child: Starting 150 worker threads.</p>
  </blockquote>
  <p>My PHP, Apache, and PostgreSQL are all 64 bit.</p>
  <p>I added the directory (m:\PostgreSQL\9.3\lib) that includes libpq.dll to my Path and then restarted but it didn't help.</p>
  <p>I also tried copying libpq.dll into the Apache bin directory.</p>
  <p>Are there any other dependencies?</p>