C#

string text = "compdld -d -i\"C:\\softpay\\ver22\\output\\cpac\\ads\\files\\softpayx.dld\" -w\"C:\\HSBMFC\" -momni-5150 -aHSBMFC -tTID01 -gl -fl";
            File.WriteAllText(@"C:\COMPDLD\a.bat", text);
            ProcessStartInfo psi = new System.Diagnostics.ProcessStartInfo();
            psi.FileName = @"C:\COMPDLD\a.bat";
            psi.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
            System.Diagnostics.Process p = new System.Diagnostics.Process();
            p.StartInfo = psi;
            p.EnableRaisingEvents = true;
            p.Start();

            while (!p.HasExited)
            {
                System.Threading.Thread.Sleep(1000);
            }
            if (p.ExitCode != 0)
            {
                //some error occurred
            }

..

like...

and show in richtextbox control..

here is my code:-

richTextBox1.LoadFile(filepath,RichTextBoxStreamType.RichText);
string inputstring = richTextBox1.Text;
StringBuilder sb = new StringBuilder(inputstring);
sb.Insert(0, "

");
sb.Replace("\n", "

");
sb.Replace("