Ji ! I'm woking under Linux and I extracted PHP 4.3.4 (tar.gz) <http://www.php.net/get/php-4.3.4.tar.gz/from/a/mirror> . I had use this command : "httpd stop" "./configure --with-mysql=/usr/bin/mysql --with-apxs -enable-pcntl --enable-sigchild" in order to use use process. But, it doesn't work. I have the error message : "configure: error: no acceptable cc found in $PATH" ! Can you help me, please ? Thank you, Zaher. PS : before I wa using php 4.1 and MySql under Apache