I've been looking for and trying to create myself, an application that can hide itself from the NT process list. I know that this can be done as I have a program that does it. (PC Activity Monitor - you see the monitor application start up and disappear immediately.)
If it's possible to have a DLL execute and remain resident after the calling EXE completes, this will probably suffice, but as long as the end result is 100%, I don't care on the method.
I know 75 points is not a lot for this, but that's all I currently have. I have 1000 points due to me for filling out the current survey, and I will willingly give these (multiplied by 4 for an excellent grade) for a 100% solution to this question.