[Php-java-bridge-users] Some PHP extensions fails to load

[<php...@li...>]

Hello,

My app wants to support as many database as possible, so I use PDO.
I've copied the pdo extensions to WEB-INF\cgi\x86-windows\ext.

I've enabled PDO for MySQL, SQLite, & ODBC and it works fine.
However when I tried to enable PDO for Postgre, I got error:
"php_pdo_pgsql.dll - The specified module could not be found. in Unknown on
line 0"

The weird thing is that the file DOES exist, I've copied it
to WEB-INF\cgi\x86-windows\ext directory.
I also got similar error for Firebird PDO.

Can someone please tell me why is this happening?
I'm using PHP 5.4.3 on Windows. Tested on Tomcat 6.& Jetty.

Thank you