4.3.10 & mySQL

Hi all I just installed PHP & MySql on my laptop together with IIS (go ahead and boo)... I just ran a <?PHP phpinfo(); ?> script to test that the server was working and got a strange result.... it says that I have version 3.23.49 when I have 4.1.8 of mysql installed on the machine... what happened? Thanks mysql MySQL Support enabled Active Persistent Links 0 Active Links 0 Client API version 3.23.49 Directive Local Value Master Value mysql.allow_persistent On On mysql.connect_timeout 60 60 mysql.default_host no value no value mysql.default_password no value no value mysql.default_port no value no value mysql.default_socket no value no value mysql.default_user no value no value mysql.max_links Unlimited Unlimited mysql.max_persistent Unlimited Unlimited mysql.trace_mode Off Off