What's a PortableApp?
A Portable App is a computer program that you can carry around with you and use on any Windows computer. When your USB flash drive or other portable device is plugged in, you have access to your software and personal data just as you would on your own PC. And when you unplug the device, none of your personal data is left behind.
—Cited directly from PortableApps.com
Portable applications can be executed from any PC and won't fill a system's registry with unnecessary data. So one does not experience performance degradation installing software after time. Inspired by the standard in PortableApps, PortableApps.com—PortableAppz.x10.mx/ focuses on the portability of software for a more efficient and less resource consumption on any Windows compliant PC.
Advantages to Portable Software
Reasons that are beneficial for utilizing software which is meant for portability is the ability to use a simple USB device. Not only does your system prosper from the use of portable applications, you have the ability to turn your USB stick, or any USB enabled device such as an iPod or Zune, into a PortableApp Suite. For example, PortableApps.com Suite™ is a collection of portable apps such as a web browser, antivirus, and more—all of which can be launched via an integrated menu configured for portability. PortableApps.com Suite™ is a collection of portable apps such as a web browser, antivirus, and more—all of which can be launched via an integrated menu configured for portability. When finished with the host computer—if the programs are properly portablized, then there shouldn't be any trace of your usage of the system left behind on the host PC.
Portable application suites like PortableApp.com Suite™ and LiberKey have a huge community dedicated to virtual appliances and virtual machines. A virtual appliance is a virtual machine image designed to run on a virtualization platform and a virtual machine is a completely isolated guest operating system installation within a normal host operating system. Communities like reboot.pro and virtualization from VMware and Oracle, give you the ability to completely transform your entire PC environment into a sophisticated set of portable, virtual, take-anywhere-you-need-to-go utility.
A virtual appliance is a virtual image designed to run on a virtualization platform and a virtual machine is a completely isolated operating system installation within a host operating system.A common problem with applications that aren't portable is they are completely dependent the Windows registry file-system. Typically the software's configuration and settings are distributed in many folders hidden from the standard user. Which hinders the ability to backup your applications. So when you need to reinstall Windows, all your settings are lost and you'd have to reinstall/reconfigure every application you had before. Sometimes, the ability to reuse an application is sometimes not possible due to licensing issues having to purchase the software again.
Besides the added perks of not having to install a program onto your computer and booting a virtual PC from anyone's computer anywhere, one does not experience performance degradation over time with portable apps. The possibilities are seemingly limitless. So if you're constantly moving from one PC to the next, you can take your most beloved software and/or virtual system with you and access your content on any host PC. So let your inner-Geek play around anywhere and everywhere with you're favorite software, made portable alongside a portable machine.