Notepad++ Portable 5.1
Freeware
120 x 95 screengrab A Portable version of the handy Notepad text editor packaged as a portable app so you can do your development on the go. It has all the same great features of Notepad++ including support for multiple languages and an extensive plug-in system.

Requires: Windows 98SE, NT, 2000, XP or Vista

VirtualDub Portable 1.8.6
Freeware
120 x 95 screengrab Make use of any video codecs installed on a computer to read different video formats. It can only save video in the AVI format, but as this is a standard file format it isn't a problem. This is quite a basic piece of software but very useful for capturing and viewing short videos and applying filters to them.

Requires: Windows 98SE, 2000, Me, XP or Vista

Opera Portable 9.62
Freeware
120 x 95 screengrab This portable version of Opera has many advantages. You can be sure of keeping bookmarks and emails accessible no matter what computer is being used. This portable version of Opera has the added benefit of not leaving any traces of the internet session on the computer.

Requires: Windows 2000, XP or Vista

ClamWin Portable 0.94.1
Freeware
120 x 95 screengrab Uses the GNU General Public License, making it open source software. It doesn't have the slickest of interfaces but this isn't really a problem as, once it's installed and you've set its options to suit your needs, you'll rarely go into the application itself.

Requires: Windows 98SE, 2000, Me, XP or Vista

FileZilla Portable 3.1.5.1
Freeware
120 x 95 screengrab A free FTP tool and this is the portable version of this application. This means you could store FileZilla Portable on your USB stick, along with the FTP sites stored in your preferences. Insert your USB stick in any PC and youÆd be able to access your FTP site without leaving a trace or leaking personal information on the PC.

Requires: Windows 2000, XP or Vista

PeaZip Portable 2.2
Freeware
120 x 95 screengrabA complete collection of portable apps including a web browser, email client, office suite, calendar, instant messaging client, antivirus, audio player, password manager, PDF reader, backup utility and integrated menu, all preconfigured to work portably.

Requires: Windows 98SE, 2000, Me, XP or Vista

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