Why command prompt coming and disappearing on running a windows application in c#?

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Windows

C#3.5

Why command prompt coming and disappearing on running a windows application in c#?

On running a windows application a command prompt like window comes and vanishes along with the form (start page).

Program.cs code of mine is as below:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;

namespace FTS_CB_SIMULATOR
{
    static class Program
    {
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new FTS_CB_SIMULATION());
        }
    }
}