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c#windowsapiservice

Windows Service Throws Error when Windows is Shutting Down

I have a Windows Service built in C# using .NET which every time a user logs off, suspends, sleeps resets or powers down it throws an error. In the Application Event Viewer it shows the error as this :-

Application: Service.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.ComponentModel.Win32Exception

Exception Info: System.InvalidOperationException
   at System.ServiceProcess.ServiceController.GenerateNames()
   at System.ServiceProcess.ServiceController.get_ServiceName()
   at System.ServiceProcess.ServiceController.Stop()
   at WellformationDesktopService.Wellformation+<OnSessionChange>d__3.MoveNext()
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore+<>c.<ThrowAsync>b__6_1(System.Object)
   at System.Threading.QueueUserWorkItemCallback.WaitCallback_Context(System.Object)
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
   at System.Threading.ThreadPoolWorkQueue.Dispatch()
   at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback()

The action that seems to be failing is using a System.Net.HTTP.HttpClient to send a submission to remote API. The code works at any other time other than when Windows is in effect shutting down the user space.

What do I need to do to force my service to fire the action before it is not possible to do?

Thanks in advance.

Solution

  • We have corrected the issue as per the advice from @Martheen above and all is now working. We ignore the windows shut down events but on startup find the last logout for a user and use that time for the end of their session and submit it in retrospect the next time the machine is used.

    Thanks