问是否有一种方法可以正确地结束与QuickBooks/QBW32.exe的会话，这样它就不会在后台继续运行？

EN

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Xml;
using Interop.QBXMLRP2;

namespace Open_Connection
{

    public partial class Form1 : Form
    {

        bool sessionBegun = false;
        bool connectionOpen = false;
        RequestProcessor2 rp = null;
        string ticket;


        public Form1()
        {
            InitializeComponent();
        }

        private void End_Click(object sender, EventArgs e)
        {
            Environment.Exit(0);
        }

        private void OpenConn_Click(object sender, EventArgs e)
        {
            try
            {  //Start a new connection with QuickBooks
                rp = new RequestProcessor2();
                rp.OpenConnection2("", "Open Connection", QBXMLRPConnectionType.localQBD);
                connectionOpen = true;
            }

            catch (Exception connectionException)
                { //If the connection fails, close the connection to avoid the program from getting stuck in an interop error loop.
                        MessageBox.Show(connectionException.Message, "Error");
                        if (connectionOpen)
                        {
                            rp.CloseConnection();
                        }
                }
        }

        private void StartSess_Click(object sender, EventArgs e)
        {
            try
            {  //Start a new session with QuickBooks using the company file specified below.
                string ticket = rp.BeginSession(@"C:\Users\username\Documents\Quickbooks Company Files\example.QBW", QBFileMode.qbFileOpenDoNotCare);
                sessionBegun = true;
            }
            catch (Exception sessException)
            {
                //If the session fails (I.E. QuickBooks is not open with a user logged into the company file and the program is not given permission to
                //automatically log in, imeedietly end the session and close the connection.
                MessageBox.Show(sessException.Message, "Error");
                if (sessionBegun)
                {
                    rp.EndSession(ticket);
                }

                if (connectionOpen)
                {
                    rp.CloseConnection();
                }
            }
        }

        private void EndSess_Click(object sender, EventArgs e)
        {
            try
            { //End the session 
                rp.EndSession(ticket);
                sessionBegun = false;
            }

            catch (Exception ex)
            { //If a session was not started already, set the session begun flag to false to avoid getting stuck in a loop. 
                sessionBegun = false;
            }

        }

        private void CloseConn_Click(object sender, EventArgs e)
        {
            try
            { //Close the connection to QuickBooks 
                rp.CloseConnection();
                connectionOpen = false;
            }

            catch (Exception ex)
            { //If the connection was not open, set the connection open flag ot false to avoid getting stuck in a loop.
                connectionOpen = false;
            }

        }
    }
}