Internet Explorer Portable.
Yroark - May 20, 2008 - 11:35am
Just for laughs I copied my Internet Explorer folder from my programs folder to my portable apps drive. It ran fine on the three machines I tested. Granted those three machines were all either Windows XP or Vista and had the same version of IE installed.
I realize that IE isn't open source but I thought it was worth mentioning for those of us that use Internet Explorer and not Firefox.