Process.Start() not starting the .exe file (works when run manually)

Question

I have an .exe file that needs to be run after I create a file. The file is successfully created and I am using the following code to run the .exe file

Answer 1

    private void Print(string pdfFileName)
    {
        string processFilename = Microsoft.Win32.Registry.LocalMachine
    .OpenSubKey("Software")
    .OpenSubKey("Microsoft")
    .OpenSubKey("Windows")
    .OpenSubKey("CurrentVersion")
    .OpenSubKey("App Paths")
    .OpenSubKey("AcroRd32.exe")
    .GetValue(string.Empty).ToString();

        ProcessStartInfo info = new ProcessStartInfo();
        info.Verb = "print";
        info.FileName = processFilename;
        info.Arguments = string.Format("/p /h {0}", pdfFileName);
        info.CreateNoWindow = true;
        info.WindowStyle = ProcessWindowStyle.Hidden;
        ////(It won't be hidden anyway... thanks Adobe!)
        info.UseShellExecute = false;

        Process p = Process.Start(info);
        p.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;

        int counter = 0;
        while (!p.HasExited)
        {
            System.Threading.Thread.Sleep(1000);
            counter += 1;

            if (counter == 5)
            {
                break;
            }
        }

        if (!p.HasExited)
        {
            p.CloseMainWindow();
            p.Kill();
        }
    }