>I really find it hard to believe that that dialog is only tied to the OS getting a Ctrl-Alt-Del keystroke sequence.

(yeah, I know, this one's a bit on the moldy side) I've been hacking at this on and off for the last week (hard to do, since I only run Win9x on multi-boot at home), and I can't figure out how to get it with anything other than a three-fingered salute. As far as I can tell, getting to it programatically isn't going to happen.