@ camerongray, thanks again.
@ soybean, thanks for your reply. What are the main differences? Is chromium called this because it is the portable version of the Google Chrome web browser? I have noticed some subtle differences, but the two are very similar.
I have another question for both of you. Why do you have to get these portable versions from Sourceforge? Why can't you get them from Google? Does Google actually create these portable versions or are these created by some third party?