First Off, thank you for your prompt reply. I have used SpyBotSD for many years and trust it. I also use other Malware and Virus programs to be sure my PC does not get infected.
The main reason for using a USB drive with PortableApps on it is for personal efficiency. I want to test the PC I plug my drive into to make sure it has no problems and before I remove my personal USB drive, test it to make sure it is still clean.
Most company and institutional PC’s are controlled by stupid IT people who want to control the world and lock the machine down so you cannot install any software on it. Even if you were able too, when you came back to use the program it would be all screwed up by users overwriting the initial profile.
A good PortableApp does not leave any trace that it has been installed on the machine by not writing to the registry, changing any cookies, leaving any log or temp files. When this is done, I am not leaving my self open for any legal problems that may occur. And I am “Good to go”.
I have tried the Open Sourceforge.net where all the software is open source See: (
http://portableapps.com/ ) and it gave me problems and is a pain to use in that it tries to install the main programs on your “C Drive”, which I did not like having gone. Try updating a PortApp from then and see how much problems you have. Another reason I did not like it was because of the menu you cannot organize it into different categories.
Another system is the “U3 Flash Drive” it is a proprietary drive and cost a lot more than regular USB drives which sometimes are a lot faster than the U3 drives. I have never tried the U3 Flash Drive because of the cost and speed issue.
Both USB drive allow you too put freeware software on them which are not open source. Check out (
http://www.app-stick.com/ ) and see a lot of freeware software that does not leave a trace when removed. It’s about time SpyBotSD go going with the PortApp program.