Found this 1 today, sounds promising & it 'may' help some of us alot:
from their website pitch:
Application Virtualization
Use your apps anywhere:
USB, Dropbox, Lan
Use your apps directly from any computer
Keep your computer fast & stable
Never have to reinstall your apps again
Tired of installing and reinstalling software packages when you MOVE from one computer to another? Want to keep your System Stable and safe from software installations?
Cameyo uses cutting-edge virtualization technology allowing you to package your software packages into single executables that can run directly on any machine without having to install them and without requiring administrator privileges. you can free download Cameyo 1.7.610 now.
In a nutshell
A virtual app is a single .EXE file that holds an entire application, including files, DLLs and registry. Virtual apps can be copied & moved around like regular files and launched from anywhere: home, office, Dropbox, USB disk-on-key, laptop, network shares. With Cameyo's application virtualization, you can take your apps and related data with you, anywhere.
on Youtube:
http://www.youtube.com/watch?v=FSZQzKR9mZE&feature=player_embedded#!
the site:
http://www.cameyo.com/