Yep been using some of them myself. Really useful - especially with the compatibility issues.
Portable applications in general are software and programs you can run independently from a removable drives (like flash/pen drive) without going through the hassle of installing them. They are widely used and have been a favorite approach for professionals of different various industries.
With portable applications, you can leave your laptop behind; plug in the thumb drive in any client machine, run the application without worrying about leaving anything behind. You’ll be surprise how many applications you can actually run without installation.
I have been using "Portable Apps" from PortableApps.com - Portable software for USB drives for some time now and have found it a boon when either having to work on a strange computer or, simply, when away from home and without either Dt and Lt.
The suite of apps from LiberKey - Portable Applications is also pretty good.
Both have a lot of similar software, so it depends what you prefer.
Yep been using some of them myself. Really useful - especially with the compatibility issues.
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