[PHP-INSTALL] HTTP Error 400

[Stefano Fumagalli]

Hi, I have installed on my pc php 4.3.8 with the file downloaded from www.php.net php-4.3.8-Win32.zip. I hve done all the passages written in the file install.txt but when i open with the browser a php file, ex: http://localhost/index.php...... HTTP Error 400! What can I do? thanks. Stefano