Trouble Installing

[onlyican]

Hey guys

I am trying to install PHP on IIS.
The infamous problems.

I downloaded php installer and zip files
Extrated the zip files to c:/php
and added the installer into c:/php

I then run php installer, and it asked me what option I am installing php for
IIS 4 +ISAPI module
IIS 4+ CGI
IIS / PWS 3

I did not know what one to select so I selected IIS 4+ ISAPI module.

Now. I installed it, and created test.php
with
<?php
phpinfo();
?>

Now, when I navigate to the file, via localhost, it tries to download the file.

What am I doing wrong.

This is a Fresh install of IIS on a Windows XP Pro OS

[kobmat]

Try to go to IIS on the Administrative Tools.
Then right click then properties on the Default Web Site.
Then click on the Home Directory Tab.
Toward the bottom of the tab.. click on the configuration button.
on the Application Extensions Check if php is there.
If not add php to it