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Asked: 2026-05-25T12:47:57+00:00

I have an executable that can run normally or as service. At the startup

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I have an executable that can run normally or as service. At the startup it may show an error message if there is an error (using MessageBox api). This can cause failure if the application is running as service but not allowed to interact with desktop.The process may appear to be hanging. Is there a programmatic way to detect if the application can interact with desktop ? I can then use some other error notification mechanism (log file etc)

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  1. Editorial Team

    From MSDN:

    To determine whether a service is running as an interactive service,
    call the GetProcessWindowStation function to retrieve a handle to the
    window station, and the GetUserObjectInformation function to test
    whether the window station has the WSF_VISIBLE attribute.

    In .NET you can use Environment.UserInteractive

    The UserInteractive property reports false for a Windows process or a
    service like IIS that runs without a user interface. If this property
    is false, do not display modal dialogs or message boxes because there
    is no graphical user interface for the user to interact with.

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