DokuWikiStick : a wiki on USB stick
The concept is extremely simple : an USB stick, a MicroApache web server and a DokuWiki… Done ! You get a fully functional DokuWiki (only the plugins based on an external modules like an SQL or authentication server will, at best, be more difficult to set up) ! 
There's no need for a long installation guide :
- go to DokuWiki's standard download page, choose stable version, check the magic [MicroApache] box and whatever languages or plugins you are interested in
- download the package, uncompress it on your USB stick, launch the
run.batscript - go to the address
http://localhost:8800/install.phpfor basic configuration
And voilà ! You have a beautyfull new wiki ready to roll at the following address : http://localhost:8800/doku.php
It is possible to delete install.php file, but with an USB stick, there's little chance that anyone with evil intention gets the oportunity to use it… 
The biggest interest of this tool, in my humble opinion, is that since it functions exactly like any DokuWiki, it is a wonderfull test environment tool perfect to develop plugins or templates.
Any drawback ? A very small one… A batch script to launch and “manage” Micro Apache is an ugly thing 
This is why I made this AutoIt script.
For posterity, here is the page of the initial project but the version you can download there is, by far, totally obsolete.