I'm looking for either a method to achieve this, or a clear reason why it's not possible.
I use Scheduled Tasks to start an app with a GUI at system startup. I want to see that GUI's screen after logon without restarting it. I'm willing to type a password and/or re-logon and/or or use whatever app or tool to help, including changing the way I run the GUI app. It just can't wait for a user logon to start.
How do I do it? Or if it's absolutely impossible, why? I've read about "Shatter attacks" but that doesn't seem to cover this.
I'm most interested in XP and Windows7.
If multiple solutions exist, of course I'd prefer the most convenient, flexible and/or open source.