It would have been more amusing if you had included an explanation of how this was you in trying to solve a current Notepad++ coding problem. :-)

You’re not wrong.

Here’s the whole story:
https://github.com/notepad-plus-plus/notepad-plus-plus/pull/15681

Long story short: I tried to remedy the network file disconnected hanging problem. So I used thread. It leads the zombie process after closing Notepad++. Of course, the thread solution has been abandoned partially.

It would have been more amusing if you had included an explanation of how this was you in trying to solve a current Notepad++ coding problem. :-)