Syntax of Process.Start()

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Security;
using System.ComponentModel.Design;
using System.Windows.Forms;
using System.Diagnostics;


public partial class Test : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void Button1_Click(object sender, EventArgs e)
    {

        SecureString password= new SecureString();
      
       password.AppendChar( 'A' );
       password.AppendChar( 'a' );
       password.AppendChar( 's' );
       password.AppendChar( 'h' );
       password.AppendChar( 'i' );
       password.AppendChar( 's' );
       password.AppendChar( 'h' );


         try
         {
             Process.Start("Firefox.exe", "www.facebook.com","abc@y.com" ,password,".com");
         }
         catch (Exception ex)
         {
             MessageBox.Show(ex.Message);
         }
    }
    
}