Apache Server with php

Hi, I am having issues with the installation and configuration of my Apache server 2.0.52(win32). All is well when I restart the server with the exception of, when I load the following lines. I opened up the httpd.conf file and searched for #LoadModule ssl_module modules/mod_ssl.so. Directly underneath that line, I added LoadModule php4_module D:/php/sapi/php4apache2.dll. My plan was to run PHP as a module for Apache, instead of as a CGI binary but every time I add this line my server will not restart but I get an error stating "The requested operation has failed". I checked to ensure the path was correct to this dll and all is well. Any suggestions? Thanks, Ramiro