kill windows explorer in .net???

I'm trying to write an application in C# that kills windows explorer, or as an alternative I'd like to keep it from starting at all. When I kill it with the task manager, it does not restart. When I use System.Diagnostics.Process.Kill() on it it always comes back. I even imported TerminateProcess from kernel32.dll and invoked it from my c# program, yet again explorer comes back. The reason is, I want to replace windows explorer with something else of my own making.... Any advice?