nb1 writes:  

usb-WebServer is nice little Web Server package that includes Apache, MySQL, PHP, and PHPMyAdmin. Much like XAMPP, NetServer and other popular Web Servers, the application is dockable to the system tray and services can be run either portably or installed as a system service. The menu items are available in the English language via the Settings tab. This application requires roughly 22.3MB for complete portable installation.

Get the USB Webserver