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AVEVA™ PI System™ Feedback Portal

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Status No status
Categories Data Archive
Created by Kenneth Barber
Created on Nov 12, 2026

Move or eliminate the "dummy" folders for the archives and the event queue

According to this KB article, whenever the PI Data Archive is installed or upgraded, the following 3 folders are created:

  • C:\Program Files\dummyarc

  • C:\Program Files\dummyfut

  • C:\Program Files\dummyq

The "Program Files" folder is intended for programs, and these folders do not contain any programs. In addition, if the tuning parameter Archive_AutoArchiveFileRoot, Archive_FutureAutoArchiveFileRoot, or Snapshot_EventQueuePath already has a non-default value, then there is no point in creating its corresponding dummy folder since it will just be left empty. Lastly, I don't know of any other program that creates dummy folders like this in such an inappropriate location and just leaves them there.


Please stop creating these dummy folders. If this cannot be done, then create only the ones where its corresponding tuning parameter is not explicitly specified, and create these folders in a more appropriate location (e.g. %PISERVER%).

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