I did discover it back in the day by accident, and it must've been Windows 2000 or earlier. Very confused where that came from at first, as it clearly was the c

I did discover it back in the day by accident, and it must've been Windows 2000 or earlier. Very confused where that came from at first, as it clearly was the contents of some generic message box, but it made no sense why it was in my clipboard in text form. Then I was like "wait a minute, they didn't...." And sure enough after triggering a random message somewhere and pressing ctrl-c I had that very message in my clipboard. Immediately had to tell everybody about it in excitement; nobody knew. Though I remember there being long lines of dashes as separators between the sections instead of those [Title] headings. (Not on Windows anymore for a decade now, so memory is foggy).