Not really, No! As I said, it's not reliably repeatable. It only happens sometimes, when I click the 'X' top right to close PSPAD. Sometimes I just open a file, look at it, make NO changes, close it again, then I get the message. Other times I don't.
I started with 501en, then copied over 502b341, then 502b341x64. -- <https://forum.pspad.com/read.php?6,72029,72053> PSPad freeware editor https://www.pspad.com
