I wanted to start using LS again after 3 years or so and swung by here to check out the forums for any big changes to LS, and thought i might be of help about running LS from a removable media I did this a long time ago. You already have the basics good, but as far as killing explorer and starting LS there is a much simpler and faster way to go about it, even without taskmnger.

open notepad and type:

@echo off
taskkill /f /im explorer.exe
start e:\litestep\litestep.exe

Save as a .bat file and put on your pendrive or cd or whatever.
running the .bat file will kill explorer and start litestep or whatever you want. (cough...blackbox...cough)

also, one could make an autorun.inf
to run the .bat file right when media is connected.

All of this is asuming your using XP or higher.