if you see unable to load dynamic library php_mysql.dll
If you are trying to do what I did, install PHP5 and Apache 2 on Windows XP machine using an Apache installer and a zipped PHP, then you may see this message “unable to load dynamic library php_mysql.dll”, locate “libmysql.dll” and copy to “windows/system32″, and 3nj0y. 
if you can’t load/find phpapache2.dll
If you are trying to do what I did, install PHP5 and Apache 2 on Windows XP machine using an Apache installer and a zipped PHP, then you are bound to see these messages
HTTPD: Syntax error on line 485 of C:/amp/apache2/conf/httpd.conf: Cannot load C:/amp/apache2/php5apache2.dll into server: The specified module could not be found.
The solution is to add this to your file
#load the php main library to avoid dll hell
Loadfile "C:\pathtophp\php5ts.dll"
#load the sapi so that apache can use php
LoadModule php5_module “C:\pathtophp\php5apache2_2.dll”
#set the php.ini location so that you don’t have to waste time guessing where it is
PHPIniDir “C:\pathtophp”
#Hook the php file extensions, notice that Addtype is NOT USED, since that’s just stupid
AddHandler application/x-httpd-php .php
AddHandler application/x-httpd-php-source .phps
