Moodle, Apache help

We have had our Moodle install running on IIS, with PHP and MySQL for the last year no problems. Its starting to get used more and more, so i thought i would see if using apache would be any quicker on the same hardware.

So this morning i have installed apache on to 8080, leaving IIS running on 80.

Added these lines to the http.conf

#
LoadModule php5_module "C:/php5/php5apache2_2.dll"
AddHandler application/x-httpd-php .php

# configure the path to php.ini
PHPIniDir "C:/windows"

Changed the DocumentRoot to the same folder that the IIS Moodle install is on.

Is there any reason why when i go to http://localhost:8080 i just get a list of the files in that folder, and when i put /index.php at the end it thinks for a few seconds then goes page cannot be displayed?

Is there somthing i have missed out?

I have tried a <?php phpinfo(); ?> and it loads, and shows mysql enabled....

On a side note: I found that apache ran slower. It run much better on IIS on a 64 bit operating system.

I am not an apache expert i will leave that to someone else.