add the following towards the end of httpd.conf
#load the php main library
Loadfile "C:/php-5.2.10-Win32/php5ts.dll"
#load the sapi so that apache can use php
LoadModule php5_module "C:/php-5.2.10-Win32/php5apache2_2.dll"
#set the php.ini location
PHPIniDir "C:/php-5.2.10-Win32"
#Hook the php file extensions
AddHandler application/x-httpd-php .php
AddHandler application/x-httpd-php-source .phps
make a copy of php.ini-recommended and rename it to php.ini
restart the http server and test a php page.
