How to terminate a process cleanly from a background service

Question

I have developed a program which runs as a Windows service. This program starts a process to run another exe file. It's developed in C# with .NET 6.0.

I know I can use

Process.Kill()

to terminate the process, but I'd like to try to end the process cleanly before killing it. I've read through several other threads, but haven't found a solution that works. The exe file that is run as a process does not have a GUI, so CloseMainWindow doesn't work. Here is the code where I start the process. When a CancellationToken arrives, the loop exits and the service tries to end the exe process.

ProcessStartInfo startInfo = new ProcessStartInfo();
startInfo.CreateNoWindow = true;
startInfo.UseShellExecute = false;
startInfo.FileName = "otherprogram.exe";
startInfo.WindowStyle = ProcessWindowStyle.Hidden;

// Start the process with the info we specified.
// Call WaitForExit and then the using statement will close.
using (Process exeProcess = Process.Start(startInfo))
{
    bool exited = false;
    while (!stoppingToken.IsCancellationRequested && !exited)
    {
        exited = exeProcess.WaitForExit(1000);
    }
    if (!exited)
    {
        exeProcess.CloseMainWindow();  // THIS DOES NOT WORK!!!!
        exited = exeProcess.WaitForExit(5000);
    }
    if (!exited)
    {
        exeProcess.Kill();
        exited = exeProcess.WaitForExit(5000);
    }
}

Any suggestions or pointers to other threads would be greatly appreciated. Thank you!

Answer 1

the easiest is to redirect the console, and send an exit command,