Problem : how to tell PHP which MySQL build to point to ???

Hello, Windows XP Pro, Apache 2.0.32, PHP latest build and MySQL latest build here. The problem is simple, I don't know how simple the solution is .... Ok, here it goes : in latest build of PHP MySQL is already included but it's build 3.something ... since I have downloaded latest build I would like to tell PHP to use that version and not the one that it has inside. I have found some reference to this question in the PHP Manuals online stating that the --with-mysql=/path/to/mysql command can be used to specify to PHP the location of MySQL to use. But, this is for UNIX and compiling the program ! So, how can I achive this without compiling PHP and using Windows ? I hope you can help me, thanks, Andrea