CORE-18958
Introduce an emergency log-off and restart feature, available when holding
down the control key and selecting "Log Off" or "Shut down" in the MSGINA
Ctrl-Alt-Del security dialog, similar to Windows Server 2003 and newer
Windows versions.
This includes:
- Notification dll calling in CallNotificationDll().
- winmm.dll API calling (e.g. PlaySound) in PlaySoundRoutine().
Also:
- Fix dwKeyName usage in RegEnumKeyExW() specifying a number of *characters*.
Refactor the security related code of Winlogon and move it to its own dedicated place, security.c. This includes code for preparation of security descriptors for window station and desktop objects when their created, helper functions which give allow access to such objects for the logged in user and whatnot.
==== DO NOTE ====
Currently new desktop security assignment fails because for whatever reason the system thinks the application desktop has no prior security even though a descriptor has been created for it before. See the FIXME comment on code for information.
This avoids keeping connections open and reopening them as soon
as the user reopens their session.
This fixes network shared being duplicated each time session
is reopened.
CORE-15012
