I'm trying to add a PHP extension (PHP_COM_DOTNET)to my server, by writing the following in my php.ini [COM_DOT_NET] extension=php_com_dotnet.dll I downloaded the dll file and put it in my ext folder, but when restarting the server, I got the following errors cant find entry point zend_new_interned_string in php5ts.dll php startup: unable to load dynamic library php_com_dotnet.dll couldn't find especified process I'm using php 5.3.18 on a xampp-like package (vertrigoserv)