Clean-up of the Event Management Utility (Creo Elements/Direct Modeling)
To avoid possible performance issues resulting from an accumulation of a large number of event records in the Event Management utility, add the following site-wide property to wt.properties: com.ptc.core.task.purgeTasksOlderThanDays= <integer>.
* 
Events older than the specified integer (number of days) are automatically purged from the Event Management utility.
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