Movienizer can be run as a portable program. Portable means that you don't need to install and adjust the program on each and every new computer. Thus you can just copy the program to an external hard disk, USB drive or any other removable media and launch it from the media without any installation. All data remains on the external drive, and the program doesn't leave its traces on the computer. That's why you can use Movienizer on any computer, wherever you want - at home, at work, or while traveling.