using System.Diagnostics;
class Program
{
    static void Main()
    {
    //
    // Use Process.Start here.
    //
    Process.Start("C:\");
    }
}

using System.Diagnostics;

class Program
{
    static void Main()
    {
    LaunchCommandLineApp();
    }

    /// <summary>
    /// Launch the legacy application with some options set.
    /// </summary>
    static void LaunchCommandLineApp()
    {
    // For the example
    const string ex1 = "C:\";
    const string ex2 = "C:\Dir";

    // Use ProcessStartInfo class
    ProcessStartInfo startInfo = new ProcessStartInfo();
    startInfo.CreateNoWindow = false;
    startInfo.UseShellExecute = false;
    startInfo.FileName = "dcm2jpg.exe";
    startInfo.WindowStyle = ProcessWindowStyle.Hidden;
    startInfo.Arguments = "-f j -o "" + ex1 + "" -z 1.0 -s y " + ex2;

    try
    {
        // Start the process with the info we specified.
        // Call WaitForExit and then the using statement will close.
        using (Process exeProcess = Process.Start(startInfo))
        {
        exeProcess.WaitForExit();
        }
    }
    catch
    {
        // Log error.
    }
    }
}

//The below mentioned code worked for me.

Process process = new Process();
//Specify the working directory.
process.StartInfo.WorkingDirectory = @"E:Source";
process.StartInfo.FileName = "Internet.exe";
// 3 arguments, space separated
// configfile imagefilename ocrfilename
process.StartInfo.Arguments = "Arguments"; //Pass the arguments with delimiters
process.StartInfo.UseShellExecute = false;
process.StartInfo.CreateNoWindow = true;
process.Start();
process.WaitForExit();