Q: exit prompt

iTunes happily closes when instructed to for me. Do you have anything connected to the scripting interface? Perhaps if you post a screenshot of the exit dialog?

tt2

Tools like Last.fm or Plex may use it to read the contents of the iTunes library if there is no iTunes Library.xml file for them to read. See About iTunes library files - Apple Support. You can use also scripts (small programs written in plain text) to automate certain tasks in iTunes, but then you'd probably know if you were doing that.

tt2

Sounds promising.

tt2