An OpsCenter needs to be updated to the latest revision.
Pelco Video Management
(1) VideoXpert OpsCenter: U1-OPS-WKS6 or E1-OPS-WKS6
(3 or 5) VideoXpert Enhanced Decoders: D09U-ENH-DEC
There is no documentation on how the enhanced decoders are updated.
When new versions of OpsCenter are released there is a firmware update for the enhanced decoders included in it (C:\Program Files\Pelco\OpsCenter\TombstoneFirmware).
Ideally you should be able to perform an in place update of OpsCenter. However various discrepancies have been reported. Product Support is recommending the below procedure.