If you have configured your application with a Windows title bar, you should consider protecting your application from being when users click the Windows close button. To do so, you should deny the Application Close security privilege from your operators.
1. Logon to a user account that has at least the Manager privilege.
2. Click the Logon button to open the Options dialog.
3. Click the Users button. The Accounts dialog will open.
4. Select the user account you wish to modify.
5. Click the Modify button. The Modify Accounts dialog will open.
6. Deselect the Application Close privilege.
7. Click the OK button. You will be returned to the Modify Accounts dialog.
8. Repeat steps 4 to 7 until you have denied the Application Close privilege to all users who should not have permission to close the application using the Windows close button.
Note: Please note that the user will still have the ability to stop the application using the VAM's Stop button. If you do not wish users to be able to do so, you should consider hiding the VAM when VTS runs (see Configuring the VAM to be Hidden), however, before you hide the VAM, you should set the application to auto-start, as once the VAM is hidden, you will not have access to its Run/Stop button.