To Kill a process

private void button3_Click(object sender, EventArgs e)

        {

            Process[] ExistingProcess = null;

            Process ChkProcess = null;

            ExistingProcess = Process.GetProcessesByName("winword");

            foreach (Process ChkProcess_loopVariable in ExistingProcess) 

            {

                ChkProcess = ChkProcess_loopVariable;

                if ((ChkProcess.ProcessName) == "WINWORD") 

                {

                    ChkProcess.Kill();

                    MessageBox.Show ( "Deleted");

                }

        }

}