500 internal sever error installing php

Am getting a 500 internal server error while running any php script on my local machine with windows xp OS.

I installed PHP 5, Apache 2.

Changed the httpd.conf as follows

For PHP 5

LoadModule php5_module "I:/php/php5apache2.dll"
AddType application/x-httpd-php .php
AddType application/x-httpd-php .htm

Action application/x-httpd-php "I:/php/php.exe"

PHPIniDir "C:/windows/"

The error log shows:

[client 127.0.0.1] D:/myscripts/index.php is not executable; ensure interpreted scripts have "#!" first line

[client 127.0.0.1] (9)Bad file descriptor: don't know how to spawn child process: D:/myscripts/index.php

Someone please help with this!

I solved the problem myself....Here are the changes I made in the httpd.conf file

LoadModule php5_module "I:/php/php5apache2.dll"
AddType application/x-httpd-php .htm
AddType application/x-httpd-php .php