The solution to stopping VA from opening over and over again is to terminate the VAICOMPRO.exe process. This can be done by right-clicking on the VAICOM PRO system tray icon and clicking, 'Exit'. If VAICOMPRO.exe is in your Windows startup, you'll need to remove it from there, otherwise, it will continue to do what it was designed to do - restart VA when it closes.
Thanks to Pfeil for the info.