First PHP program not working

Hello Group, I am beginner to learning PHP and I am still struggling to start my first php program. I downloaded apache httpd sever, which resides on "Windows XP" under C:\Program Files\Apache Software Foundation\Apache2.2 and directories therein. Similarly the PHP download resides under C:\Program Files\PHP I have made following configuration changes to httpd file, which resides under C:\Program Files\Apache Software Foundation\Apache2.2\conf although it does not show .conf extenstion, but I believe even without .conf extension "Which is hidden", it is the appropriate conf file. The changes ServerRoot "C:/Program Files/Apache Software Foundation/Apache2.2/htdocs" LoadModule php5_module C:\Program Files\php\php5apache2_2.dll PHPIniDir "C:\Program Files\php\" AddType applicaton/x-httpd-php .php for php.ini I made following changes extension_dir = "C:\Program Files\PHP" extension=C:\Program Files\MySQL\MySQL Server5.1\bin\libmySQL.dll doc_root = "C:\Pogram Files\Apache Software Foundation\Apache2.2\htdocs" I have also created a .php test program, which reads like <? phpinfo(); ?> and resides under htdocs directory under Apache installation. The htdocs directory also has an html page. The .html pages residing under htdpcs directory show themselves on following URL, however .php pages do not http://localhost/ shows "It Works" http://localhost/index.html shows "It Works" However, http://localhost/test.php shows "404 error" Can someone help me in configuring my httpd server for php files -- Thanks Nagrik