Is there a way to end the session with QuickBooks / QBW32.exe so that it doesn't run in the background?

I provide technical support and some development for a number of programs that use the QuickBooks SDK to perform various functions. Lately I've noticed that when a user does the following:

Prerequisites: - QuickBooks does NOT open on the desktop and is currently not working. - My desktop application is not included in the built-in QuickBooks auto login applications.

1) Opens one of my programs.

2) Performs an action that starts a connection and session with QuickBooks.

3) The QuickBooks interface returns an error message in which you must open QuickBooks and subscribe to a company file in order to perform this action.

4) My program closes the session and connection, and then presents the user with a dialog that provides troubleshooting tips.

Result:

QuickBooks continues to run in the background as QBW32.exe even though the session and connection have been closed.

If the user then tries to open the working QuickBooks program, they receive an error message informing them that QuickBooks is already running. Then they need to open Task Manager in windows and close the running QBW32.exe file before they can successfully open QuickBooks.

I reproduced this using a very basic C # program that I wrote below.

In a test application, I am using the following steps / script:

Prerequisite: 1) The test application is NOT automatically installed to log into QuickBooks. It is set to login only if the user has the QuickBooks work program open and they have a company file open.

2) Make sure QuickBooks is NOT open prior to the test below.

Steps:

1) Open your C # test app

2) Click the "Open Connection" button. The connection must be open to the QuickBooks interface through the QBXML interval.

3) Click the Start Session button. The session must be started using QuickBooks.

4) Assuming the test prerequisites are met above, you should receive an error message returned from QuickBooks stating that the application is NOT configured to log in automatically and you will need to open QuickBooks before you can try sessions.

5) Now QBW32.exe is running in the background.

6) Press the button that says the end of the session. This should end with a session using the QuickBooks interface. The session should already have ended with the try-catch in step 3, regardless.

7) Click the button that says "Close connection". This should close all connections to QuickBooks.

8) QBW32.exe is still running in the background even though the session and connection have been terminated and closed.

9) Close the test application using the exit button.

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;
            }

        }
    }
}

      

        
        
        
      

    

Based on the above sample program, is there anything I could do to get QBW32.exe to close on its own so that it doesn't run in the background in the above scenario?

Update: You and many other users have already tried to disable the "Save Quickbooks Running for faster startup" setting in the QuickBooks settings. This does not prevent QBW32.exe from staying open in the background after the session and connection have ended. I see this behavior happening from QB 2013 to 2015.