'How to Prevent System from Shutting down or Restart in a Win32 service?

I want to prevent users from shut down or restart the system. my application runs as a Win32 Native Service (written by C++) and under LocalSystem account.

I heard about WM_QUERYENDSESSION it's solution: creating a hidden window and capturing WM_QUERYENDSESSION to prevent shutdown.

but this solution is not really clean and also have to create one window for each desktop. So i have to enumerate desktops and also care about when a desktop created/destroyed. All of these make the situation nasty!

Is there any way to detect shutdown/restart event and prevent system shutdown/restart?

(It is not important that the event is shutdown or restart, both of them must be cancelled!)

serviceeventsshutdownrestartpower-management


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