As I noted, I think it gave a choice of things: this was with Windows XP and 2000. Still, it's like the panic key combination.
Yes, while the pundits have been racking up the hits deliberating on the issue of Linux being ready for the desktop or not for the past n years, I've been actually using it, meaning that even in work environments I've not had to worry about what Microsoft have changed with which dialogue in whichever version of Windows that is being rolled out with widespread user re-training (which of course comes at no cost whatsoever because "it's still Windows" whilst any Linux deployment can't be done even if it looks like the current version of Windows because "it would cost too much to re-train everyone").
I'd like my memory of Windows key combinations to fade further into obsolescence!