“A live CD Linux distribution can offer a full-fledged computing
environment on a CD or DVD, but if you have access to a
Windows-based machine, a removable storage device with Windows
portable applications might be a better option. Luckily, using a
Windows machine doesn’t mean you can’t use open source software.
Many of the most popular portable applications are, in fact, open
source: applications like OpenOffice.org, Thunderbird, Firefox, and
Gaim. Let’s take a look at some of the lesser-known and most useful
portable applications you can put on your USB flash drive or mobile
hard disk.“FullSync is a Java-based utility that allows you to synchronize
and back up directories on Windows. Actually, FullSync is not a
portable application, but it can come in handy if you need to keep
the applications on your computer and a removable storage device in
sync…”