How can you find out if another VI running on the same computer and how can you find out the name of that VI?

Suppose that several VIs running simultaneously on the same computer. How can I find out the names of the running VIs, from another VI?
If the already running VIs are clones of the same basic VI, open and run with the option "Prepare to call and forget", how can I find out the names and index of each clone? 

I had an application where I spawned (= ran with Start Asynchronous Call) multiple (reentrant) copies of VIs, and would occasionally "lose control" of them.  I needed a way to find all VIs that were running "Top Level" and stop them (so I didn't have to log off from Windows).
I used the Application Property "All VIs in Memory" to get an array of (wait for it ...) All VIs in Memory.  I took each name, opened a VI reference to it (simply wire the name string in, as the VI is, by definition, "in memory"), looked at its VI Execution State, and if it was Run Top Level, Invoked the FP.Close and Abort VI Methods.  [To prevent the VI that did all this from "committing Suicide", I compared the name string with the current Call Chain, and did nothing if there was a match].
I think you could adopt this idea to do what you need.
BS

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