Failing to load php_mysql.dll

Hi this error is causing me grief. I installed mySQL Apache and PHP 5. in php.ini at the c:\WINDOWS I assigned the extension dir as follows: ; Directory in which the loadable extensions (modules) reside. extension_dir = "c:\php\ext" the extension php_mysql.dll resides in this ext folder Nevertheless on loading starting apache I get a php error PHP Startup: Unable to load dynamic library 'c:\php\ext\php_mysql.dll' - The specific procedure could not be found. I have tried everything. Any idea how I can resolve this? Thanks a bunch, Ted BTW my Apache loads php as a module fine when I comment the mysql extension. in apache httpd.conf LoadModule php5_module c:/php/php5apache.dll AddType application/x-httpd-php .php AddType application/x-httpd-php-source .phps All these works fine