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Mobile server on USB drive
Uniform Server is free, mobile, open source WAMP package for Microsoft Windows (Apache, MySQL, PHP, Perl, phpMyAdmin, etc.) which can be installed on a USB drive, a hard drive, smartmedia card, etc. Uniform Server has an installer and it works great! No muss, no fuss. I migrated a content management system to a portable USB Flash Drive in 10 minutes ... the only scripts that I needed to change were a few PHP scripts that expected a document root of C:/apache/htdocs instead of Uniform Server's document root of W:/www. If you already have Apache and MySQL running as a service under Windows, simply shut down those services before (for example) firing up Uniform Server on a USB stick.