processp spawn is not killed when the electronjs app is terminated

process spawn is not killed when the electronjs app is terminated.

Is there a way to access all child processes opened by electron js?

Thanks for listening

const proc = require( "child_process" ).spawn( "C:\\my-electron-app\\dist\\mysite\\mysite.exe runserver localhost:8000 --noreload", {shell: true} );

app.on(
    "window-all-closed",
    function()
    {
        process.kill(proc.pid)
        app.quit();
    }
);

Includes an image. In console.log I showed the PID of the spawn child process return. And it is not shown in the list of windows processes.