How can I start an interactive session (desktop) in the background?

Question

Question:

How can I start an interactive session (desktop) in the background using e.g. psexec or similar tools ? I would like to later connect to this session using tscon.exe

Background information:

We got very special security and legal requirements to run an application why I am forced to build such a construct. So please don't question this approach.

And also please note, I can't use AutoLogon.exe, as we are forced to use the GPO security setting Interactive logon: Mesage title for users attempting to logon and others which prevents AutoLogon.exe to work properly.

The idea:

• Domain User A logs on to a machine
• User A starts a script
• This script creates an interactive session using a local user in the background
• Instead of the default user shell (explorer.exe) some other application (app.exe) gets loaded upon logon (also in the background)
• The script calls tscon.exeto connect to this session
• The person (technical user a) hands the device over to a customer, which uses and later closes app.exe which should lead to a logoff
• Domain User A logs back in and continues normal work