C # - launch WPF application from Windows service

I have a service that monitors if a WPF application is running on a computer. If it finds that such an application has been closed, it reopens it. This is done in a loop.

Yes, I know this is bad practice for most users, but there are times when it is necessary.

What I did was a service that most likely starts a WPF application. As a result, I can see this application in the Task Manager, but not on the screen. I also know that the constructor in App.xaml.cs is running because I made some test code there that creates an empty file.

Here's the source code for the service:

private Timer timer;
protected override void OnStart(string[] args)
{
    timer = new Timer();
    timer.Interval = 3000;
    timer.Elapsed += this.Timer_Elapsed;
    timer.Enabled = true;
}

private void Timer_Elapsed(object sender, ElapsedEventArgs e)
{
    if (!this.CheckIfRunning("Application"))
    {
        ProcessStartInfo psi = new ProcessStartInfo();
        psi.CreateNoWindow = false;
        psi.FileName = @"D:\Application.exe";
        psi.WindowStyle = ProcessWindowStyle.Normal;
        Process proc = new Process();
        proc.StartInfo = psi;
        proc.Start();
    }
}

protected override void OnStop()
{
    timer.Enabled = false;
}

      

        
        
        
      

    

All I want to do is just open WPF app with window visible.