Display Popup from script executed as System user

Hi,

I've a scheduled task, executed by System user. It's can sometimes display a popup to interacts with the user. This work fine if i launch the script myself, but not displaying when launched by the scheduled task with system user.

I use Start-Job as the current user to display the popup, but isn't working.

How can i display a popup/msgbox (need to be topmost window) for interacts with user (need to know the pushed button) from a script launched by system account ?

Regards,