'Ascii Doom', and 'Sharepod'

Ascii Doom

ASCII Doom is a text mode implementation for Doom. It is exactly what it sounds like, the classic 3D game Doom, played in text mode.

http://www.allwindowssoft.com/games.htm

NOTE: There have been reports of a Trojan horse inside of ASCII Doom, so the link has been removed. Download at your own risk (not recommended).

Sharepod

Share music from one iPod to another. According to the author, "I began working on SharePod shortly after buying an iPod. I had gone round to a friends house and found I couldn't share my non-copyrighted music without installing an iPod management program that my friend didn't want on his computer. With SharePod, nothing needs to be installed on the PC, the program is stored and run from your iPod. All you need to do is plug your iPod into a computer and run SharePod.exe.

http://www.sturm.net.nz/