I followed the following Tutorial to enable a "switch" on my ISPConfig for PHP4 and PHP5: . On the first site it says: As soon as I want to restart apache2 it says: I earased all php_admin commands in the vhost-file and started again. Apache can be started now of course, but my websites don't work anymore... I guess I get this error because of the disabled php4 module? But how can I work around? Another thing is, that I followed the tutorial altough, at the end the ISPConfig-vhost-file isn't rewrite automatically anymore... :-( What did I wrong?