I'm trying to setup a test enviroment on a virtual machine running Windows XP Home (totally updated), with Apache 2.2 and PHP 5.4.7. I can load the PHP 5 module inside httpd.conf and if I don't rename php.ini-DEVELOPMENT (or -PRODUCTION) file to php.ini, the engine works fine. This basic configuration doesn't have MySQL module loaded, so I have to rename rename the .ini-DEVELOPMENT into .ini and edit as follows: ; Directory in which the loadable extensions (modules) reside. ; http://php.net/extension-dir ; extension_dir = "./" ; On windows: extension_dir = "C:/php/ext/" ... extension=php_mysql.dll extension=php_mysqli.dll Restart Apache with no problems and... all I can get is a blank page. Where can I see some error or do you know where is the trouble? Tell me if I need to post something else to give you more details.