This has come up here and there so I thought I would post something in the Community.
As each Anti-virus software vendor has a multitude of ways to be configured, coupled with how much hardening they enforce on a computer or an entire computing infrastructure this can be a problem for any software application out there, including the Pharos software.
If there is suspicion that the anti-virus software is getting in the way one of the first things to try is to disable it altogether, or you can go full steam ahead and remove it altogether from the machine your troubleshooting. This will help determine if it is actually the cause of your woes with a software application.
If it has determined to be the cause of your woes then creating exclusions for our applications folders/files, services and/or executables should prevent the anti-virus from latching on and causing trouble.
*Additionally you could also exclude the directory that is used by the Windows Print Spooler so that it does not scan the multitude of files being processed on disk if you like. By default this location is "C:\Windows\System32\spool\PRINTERS" but can be changed.