Complete WAMP Server - PHP Apache MySQL for Windows.
VertrigoServ is a complete free WAMP server allowing PHP development for Windows. It installs Apache 2.4, PHP, MySQL and PhpMyAdmin, both installing and setting up the environment. An uninstaller allows you to remove Vertrigo from hard disc. Vertrigo is a freeware compilation of free software (under GPL, Apache License). Main aplication has closed source code. For license details please take a look at every single component terms and conditions.
Another distribution of apache that contains Apache, MySQL, Perl, and PHP. and comes with the following modules mod_perl, mod_php, mod_python, and more. Also Contains a FTP and Mail Server. Will be ready to run right after installation and a reboot.