The Housekeeping daemon checks for the LastHistoryPruneTime parameter in the Notes.ini, and compares the difference between current time and the last prune time. If the last prune time is more than 24 hours ago, the Housekeeping daemon runs and deletes all history records older than the cutoff date. Also, if the time specified in LastHistoryPruneTime is somewhat into the future (in other words, if the difference between the current time and the parameter is negative), Notes also runs the Housekeeping daemon to delete history records older than the cutoff date. The history records are the ones you can see in the bookmark bar on the left side of the Notes 6.x Client user interface. The cutoff date is set to 7 days by default, so the Housekeeping daemon deletes records older than the last 7 days when executed. Users may see more than 7 days of history information in the bookmark.nsf. For example, say there are two users, A and B. User A's Housekeeping task last ran today at 8 am. User B's Housekeeping task last ran yesterday at 5 pm. At 9 am today, both User A and User B look at their bookmark history. User A will see 7 days of history. User B will see 8 days of history because User B's Housekeeping task has not run to remove the 8th day of history. Once the Housekeeping task runs, any history that is older than 7 days will be removed, but the Housekeeping task must run in order to remove this data. Checking the LastHistoryPruneTime will show the last time that bookmark history was cleared. Example : LastHistoryPruneTime=14.07.2004