In a program that shows process tree layouts, like Process Explorer, I see that some programs are "floating", apparently not tied to any tree. How is this possible?
Most of the processes are tree'd beneath Windows' explorer.exe, which makes sense. But there are a handful of non-system/user processes that are just "floating" free, apparently not tied to or a part of any trees.
Why are some processes in trees, while others are not, and what does this equivalently mean?