The QBCFMonitorService not running on this computer file is a software component of QuickBooks for Windows that was developed by Intuit, Inc. It is usually located in the “C:\Program Files\Common File\Intuit\QuickBooks” section. It runs on the PC or database server in a QuickBooks “hosting” configuration where company files are located. From there, multiple workstations signal it through port 8019 when new or copied Intuit update files are ready. It prepares these files to be turned into an application in the user’s Company Files.