I don't know. Doesn't OS X only keep apps in the Dock if they are (assuming bottom Dock): * Dragged to the left from their original "spawn" position on the rig

I don't know. Doesn't OS X only keep apps in the Dock if they are (assuming bottom Dock): * Dragged to the left from their original "spawn" position on the right. * Explicitly set to "Keep in Dock" through the context menu. Otherwise, the app will disappear from the Dock once it has quit. The only app I know off the top of my head to install onto the Dock explicitly during installation is Microsoft Office.