7-Zip Portable was very useful a few minutes ago! One of the drivers for my dad’s machine on my USB stick was a rar, which XP cannot open without external help. The audio driver has this 3D audio demo where, using only two speakers, it gives the illusion of the sound going around you either horizonally or virtically. It seems to do so by making front sounds tinny and back sounds full, top sounds full and bottom sounds muffled. Not perfect by any means, but still an amusing demo.