Startup file - remove multiple

I am trying to import some classic zenworks snapshots with an axt extension. it seems to work fine except that it shows multiple files in the startup file that I can seem to edit. so for instance in on app the executable to launch the program is shown and also the uninstaller program. they both start on startup but I want to remove the uninstaller. I can go into the "multiple" button and uncheck one but it still runs. am I missing something?