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Asked: 2026-05-12T09:25:16+00:00

I have a created a C# windows service (Serv.exe) which is responsible for performing

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I have a created a C# windows service (Serv.exe) which is responsible for performing various tasks at the request of a running application (A.exe), some of these can take long periods of time and I need a way to know the status of my requested operation (running on the service) from the calling application (A.exe).

Currently the way I have started to implement this is by using the ControlService(handle, command, status) to send a custom command to the Service to perform the task being requested, I am also using QueryServiceStatus(handle, status) to get the status of the service from the SCM – so the basic plumbing is there and working.

Now the problem I have is, after sending my ControlService Command (which works fine) the calling application (A.exe) keeps running and, at a certain point, it needs to know if the task it requested of the service is finished or not – therefore I am looking for a way to Query the Service to report a custom status, not the standard running, stopped, pending, paused state of the actual service but the status of the request I made using the ControlService() request.

Is this at all possible?
Any help or hints would be immensily appreciated.

Thanks,

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1 Answer

  1. Editorial Team

    In the past, when I’ve had to handle more complex communication, I usually switch from QueryServiceStatus to having the service actually provide a means of communication via IPC.

    Sockets and Pipes both work very well for this. The client and service can have pretty much an unlimited freedom in terms of what is communicated this way.

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