If you are running a Windows Server, then VisualCron can login, run the job foreground, then log out.
So, If another user is logged in, they might not even notice.
This would just be a temporary fix, of course.
Fast user switching will need to be enabled, I believe.
I'm not sure if this is possible with a non-server version of Windows.
I know that the Pro version usually only allow one RDP connection at a time.
The server version allows 2.