XAMPP is an easy to install Apache distribution containing MySQL, PHP and Perl. XAMPP is really very easy to install and to use – just download, extract and start. XAMPP is a compilation of free software (comparable to a Linux distribution):

Apache HTTPD 2.2.11 + Openssl 0.9.8i
MySQL 5.1.33
PHP 5.2.9
phpMyAdmin 3.1.3.1
XAMPP CLI Bundle 1.3
FileZilla FTP Server 0.9.31
Mercury [...]