|I'm talking about the job definition, not the task (wscript).|
Let's take a step back. Desktops are tied to the login session, and not any physical hardware. Log in locally to the server? You get a desktop. RDP into that session? Your desktop moves from the local console to your RDP session. Someone RDPs into the server at the same time? Another desktop separate from yours. He disconnects without logging off? His desktop is there, not touching any active sessions. The point? The SYSTEM account has its own desktop. It's a desktop that isn't attached to any user sessions. Now, being the SYSTEM account, it can do anything it wants, including attaching itself to your desktop. And that's what setting the job to interactive mode does.
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