Mutillidae can easily be installed on Windows operating systems. In this example, I will install it on Windows 7 (this is just a personal choice). 

First, we will download and install XAMPP, which stands for Apache, MySQL, PHP, and Perl (the X at the beginning indicates that this application is cross-platform—some people call it WAMPP on Windows, replacing the X with W). So, as you may have guessed, after installing XAMPP, you will have Apache (web server), MySQL (database), and PHP (programming language).