[reprod]

You have to understand the system infrastructure to fully understand why you dont really need a task killer.

Those applications are not actually running. They could be PIDs (Process IDs) which are simply idle or they could be the system actually performing some background work. Either way, let the system do its work.

The apps will close on their own when the system feels it needs additional resources, it doesnt need our "help". I fully agree with toddpederson.

I have been running "oh so smoothly" without ATK or TaskPanel, etc. for almost a week now. No system slowdown's or anything... Try it out...
The only maintenance I do is check the Running Services once a day or so.