When Processing large data , my computer becomes idle and c# console application also gets halted.

[DllImport("kernel32.dll", CharSet = CharSet.Auto,SetLastError = true)]
static extern EXECUTION_STATE SetThreadExecutionState(EXECUTION_STATE esFlags);

[FlagsAttribute]
public enum EXECUTION_STATE :uint
{
     ES_AWAYMODE_REQUIRED = 0x00000040,
     ES_CONTINUOUS = 0x80000000,
     ES_DISPLAY_REQUIRED = 0x00000002,
     ES_SYSTEM_REQUIRED = 0x00000001
}

Below is my method , can anybody help me how to use the above method.
as i am unable to understand that.

static void Main(string[] args)
        {
            Console.WriteLine("Establishing a Connection to Microsoft Crm.....");
            ProcessResume_Linq();
            Console.WriteLine("Operation Completed successfully!!");
            Writelogfilefooter();
            Console.ReadLine();

        }