Server2Go is a Servers & Network software developed by Timo Haberkern. After our trial and test, the software is proved to be official, secure and free. Here is the official description for Server2Go:

EditByMarydown: Server2Go is a Webserver that runs out of the box without any installation and on write protected media. This means that web applications based on Server2Go can be used directly from cdrom, a usb stick or from any folder on a hard disk without the hassle of configuring Apache, PHP or MySQL.
Server2Go allows you to create a standalone working web site or PHP application on a CD-ROM. There are many examples of its possible useses such as catalogue software, calculation programmes, image campaigns (CMS-based), computer based training lessons or other applicatons. Most PHP-Software such as the content management system Joomla or the computer based training software Moodle can be used from CD-ROM with the help of Server2Go.

Server2Go was developed in the first instance for use on CD-ROM but there is no problem in using it from other drives too. Using a web browser, a user can run php programs as well as view html files on the CD-ROM. He only needs to insert a CD with Server2Go. The server software starts automatically and a browser is opened with the Website of the CD-ROM.
Server2Go was built in the first place to replace other CD-ROM webservers such as WampOnCD or MicroWeb that lacked some important features or are not being actively developed.
Main Features

* Free! No royalties
* Complete WAMPP Server-Stack
* Runs directly from CD-ROM, USB Stick or Hard disk without installation
* Full featured webserver (based on apache)
* PHP 5.x support with many extensions installed (e.g. gd)
* Supports SQLite databases
* Runs on all versions of Windows from Win 98 and above, MAC OSX support is coming
* Support for MySQL 5 Databases
* Supports many PHP extensions (GD-Lib, PDO...) by Default
* Support for Perl 5.8.