<A target="_blank" href="http://notesbusters.com/2010/10/14/domino-8-5-1-technote-fixup-can-crash-your-server/">Victor Toal found Technote 1439208, which applies to Domino 8.5.1 on Windows,</A> and just had to find out more. He's posted his findings of what installations might be at risk and which switches can trigger a crash.