Chapter 29. How to Display a User Interface from a Daemon

Daemons (Item 27) normally run in noninteractive window stations (Item 18). So, if you want to display a user interface from daemon code, you've got a couple of options. Option one is to get yourself into the interactive window station, and option two is to have a process already in the interactive window station display a UI for you.

Let me describe a couple of ways to achieve the first option. An easy way to put a daemon in the interactive window station (WinSta0) so it can have its own user interface is to package it as a service that runs as SYSTEM and check the box that says, “Allow service to interact with the desktop.” This tells the SCM to launch your service process in the SYSTEM ...

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