Why does my .NET Windows service not start automatically sometimes?
Solution 1
I ended up using Thread.Sleep(10000) right before I create the ManagementEventWatcher (before the try statement)
It is kind of a workaround, but it did fix the problem.
Solution 2
I've had this problem myself and apparently it only occurs on Windows XP (not on Vista or Win 7). To fix this you need to add a dependency to the Windows Management Instrumentation service. Adding this dependency to your existing service is done in three simple steps:
- Open the command prompt (Windows+R -> cmd -> enter)
- Type: sc config "NAME_OF_YOUR_SERVICE" depend= winmgmt
- Press enter, you should see: [SC] ChangeServiceConfig SUCCESS
Restart your computer and your service should now start correctly.
Solution 3
The problem isn't with the service itself, it's that the new component you added a reference to is throwing an unhandled exception (Call was canceled by the message filter). Troubleshoot that error message with whatever code you added, and/or put in better error handling so that an error in that component will not bubble up to the top and cause the service to stop :-)
Tomek
Updated on June 09, 2022Comments
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Tomek about 2 years
I have modified a working Windows service that had always been starting beforehand. After adding the System.Management reference it now sometimes will not start automatically. I get the following error:
Service cannot be started. System.Runtime.InteropServices.COMException (0x80010002): Call was canceled by the message filter. (Exception from HRESULT: 0x80010002 (RPC_E_CALL_CANCELED))
I found another post here on SO with someone having the same issue.
Why won't my .Net Windows service start automatically after a reboot?
However, the proposed solution was to have the service start after the services it depends on have started. However, when I go to the Dependencies tab for my service, I see:
Should I just use the workaround method of putting the thread to sleep, or is there a more proper way of getting this service to start correctly? Is this happening because .NET has not started before my service starts?
Thanks,
Tomek
EDIT: I have added a try-catch statement to catch the exception. Here is the code that I added to the OnStart() method of my service (which is where the exception is being thrown)
try { _watcher = new ManagementEventWatcher(query); _watcher.EventArrived += new EventArrivedEventHandler(watcher_EventArrived); _watcher.Start(); } catch (Exception ex) { EventLog.WriteEntry("Could not create Sleep/Resume watcher" + ex.Message); }
The service does start now but without the functionality that I have added. I am new to .NET, but I took the watcher code from a sample I found online, so I am pretty sure it is correct. The Event Log displays the same exception:
Could not create Sleep/Resume watcher Call was canceled by the message filter. (Exception from HRESULT: 0x80010002 (RPC_E_CALL_CANCELED))
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Tomek over 14 yearshow can I find out which services my service depends on other than the Services applet?
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Tomek over 14 years@Joel Martinez I have added the try-catch but am getting the same exception (see my edit)
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Andre Hofmeister almost 11 yearsThis is the correct answer! You can also add the dependency to the service installer.