memory release on close of window application c#

Put Below code inside Form Closing Event

Please use the   Environment.Exit(0); in Form Closing Event.


        /// <summary>
        /// Form Close Event
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void DCDFormat_FormClosing(object sender, FormClosingEventArgs e)
        {
            ///For exit from application
            Environment.Exit(0);
        }