Are you trying to get an application to run while no one is logged on to the computer? Applications (including but not limited to Photoshop) do not run unless someone is signed in.
Yes; I want to schedule the process regardless of if somebody is logged in.
Does not sound like it is able to do that.
Keep in mind that you provide login credentials in a scheduled job, which essentially logs in the specified user for the duration of the job.
But I don't know if components of Photoshop can be run without a user being interactively logged-in to the console. There are parts of the initialization that are dependent on the GPU, for example, and that may not be available to a batch job that isn't associated with the console.
What happens when you try? Are you seeing messages in the Application Event Log?