System.Diagnostics.Process.Dispose C# (CSharp) Method

        protected override void Dispose(bool disposing) { }
        public bool WaitForInputIdle() { throw null; }

        static bool AddFirewallRule()
        {
            //accomplished via shelling out to netsh.exe with relevant arguments.
            Process proc = new Process();
            proc.EnableRaisingEvents = false;
            proc.StartInfo.UseShellExecute = false; //the process should be created directly from this app.
            proc.StartInfo.RedirectStandardError = true; //allowed since we set UseShellExecute to false
            proc.StartInfo.FileName = "netsh.exe"; //would include the folder name if not in system path
            proc.StartInfo.Arguments = "advfirewall firewall add rule name=\"Banned IP Addresses\" dir=in action=block description=\"IPs detected from Security Event Log with more than 10 failed attempts a day\" enable=yes profile=any localip=any protocol=any interfacetype=any";
            proc.StartInfo.CreateNoWindow = true;
            string errstr = "";

            try
            {
                OutputMsg("Starting netsh.exe to add firewall rule");
                proc.Start();
                errstr = proc.StandardError.ReadToEnd();
                proc.WaitForExit();
            }
            catch (Exception e)
            {
                OutputMsg("Unable to add firewall rule. Error starting process for netsh.exe" , e.ToString());
                proc.Dispose();
                return false;
            }

            if (errstr != "")
            {
                OutputMsg("Suspicious output from netsh.exe:\n\t" + errstr +
                                "\n*** Check to verify that the update was processed correctly. ***");
             }

            proc.Dispose();
            return true;
        }