Good point. Problem is, you are using a mode (AutoClose) which allegedly can't work when run from a Schedule(d Task) set to run whether the user is logged in or not, but if you are not (logged in), Outlook can't be open anyway, so the AutoClose isn't actually necessary at that point anyway.
So it likely won't matter if AutoClose is configured if the Task is set to to run 'either way' (logged in or not). A test I just did in Windows 8 with that setting in the Task (set to run in 'a minute from now') and an AutoClose for Outlook did actually work (while I was logged in). Windows is freaky sometimes, so I think that Help entry is more of a caveat in case it doesn't work, so you may want to try it also. If it closes Outlook for you while logged in, it shouldn't matter if the AutoClose command is configured when run on a Schedule when you're not, because Outlook would likely be closed then anyway.
So it likely won't matter if AutoClose is configured if the Task is set to to run 'either way' (logged in or not). A test I just did in Windows 8 with that setting in the Task (set to run in 'a minute from now') and an AutoClose for Outlook did actually work (while I was logged in). Windows is freaky sometimes, so I think that Help entry is more of a caveat in case it doesn't work, so you may want to try it also. If it closes Outlook for you while logged in, it shouldn't matter if the AutoClose command is configured when run on a Schedule when you're not, because Outlook would likely be closed then anyway.