Liberkey works on a flash drive and its designed to allow the apps only you want to install without having to use the hard drive on your computer.
A little bit of information from the product page:
"Liberkey is a collection of portable apps in a variety of categories that can be run on your local PC or from any portable media. Take these important apps with you and use on any computer.
LiberKey is a complete application platform for local or portable use. It allows you to manage your applications quickly and without skill.
Installation of an application from LiberKey catalog is done with 2 clicks but you can easily add any other application.
After LiberKey 5.x installation, the user has the choice to install Ultimate, Standard or Basic suites (so always updated) or to define its own suite with the online catalog."
And in fact... It is easy to use. You have lots of control over this program and then some. Check out some screenshots I took of the program
Once you have checked them out the download link and program page is here:
http://www.liberkey.com/en.html
