WordPress Portable is the package some have been waiting for. Just download it, extract on your local drive or flash drive and run it!
Possible uses for a portable WordPress
Trying new WordPress versions
Showcasing your work to clients
Theme development & testing
Plugin development & testing
Using WordPress Portable
To run WordPress Portable just start the file in the main folder and double-click the system tray icon to open your WordPress page. To quit WordPress Portable right-click the system tray icon and then click exit.