ATxService not exiting properly on system shutdown

Resulting in unnecessary emails to the admins on the next startup

changed title from AtxService not exiting properly on system shutdown to ATxService not exiting properly on system shutdown

added Component:ATxService label

added To Do label

added Doing and removed To Do labels

Looks like we need to set the ServiceBase.CanShutdown property explicitly. No idea when this has changed, since the shutdown event was definitely received by the service before, the corresponding tests showed it was working.

closed via commit b4245bf7

removed Doing label