I could not found how they passed input parameters and returning output value from Vbscript  through c#.

can you tell me what are the input and output parameters in below code;

var p = new Process()
        {
            StartInfo = new ProcessStartInfo("netstat")
            {
                RedirectStandardOutput = true,
                RedirectStandardError = true,
                UseShellExecute = false,
            }
        };

        var outputWriter = new StringWriter();
        p.OutputDataReceived += (sender, args) => outputWriter.WriteLine(args.Data);

        var errorWriter = new StringWriter();
        p.ErrorDataReceived += (sender, args) => errorWriter.WriteLine(args.Data);

        p.Start();
        p.BeginOutputReadLine();
        p.BeginErrorReadLine();     
        p.WaitForExit();

        if (p.ExitCode == 0)
        {
            Console.WriteLine(outputWriter.GetStringBuilder().ToString());
        }
        else
        {
            Console.WriteLine("Process failed with error code {0}\nMessage Was:\n{1}", p.ExitCode
                , errorWriter.GetStringBuilder().ToString());
        }