Ive seen it done before in a way with a game called "Beach Head 2000", where the system boots off of a customised copy of XP Pro with a GLOBAL VR logo. (not embedded, as its a full blown PC in an arcade machine playing a PC game) It loads the entire windows environment into memory and starts a watchdog and loads the game off of CD. This is similar to the way I would like it. In My setup... Ive found that by deleting EXPLORER.EXE nothing loads, but my background picture, and the only way to load something is Ctrl-Alt-Del and Stepmania doesnt require EXPLORER.EXE to run. The Way I Would like it: Boot, runs a cut down windows system that runs stepmania on the first CD, then when somebody goes to select a song, the second CD drive runs the audio/background graphics. Since its a cut down version of windows, it only needs to run the game itself, nothing else, which means I only need the following things. USB Memory card drivers (All Of them) DirectX 9 Video, Sound, Chipset, Input Drivers In sort, Ill have 2 CD/DVD's, one for Windows/Stepmania, one for streamed data, and my computer will be reduced to the functionality of an XBOX game. Its on Read Only Media so no fragmentation and no way to pick up viri from memory cards, and nobody can tamper with the settings because there are none to tamper with.