It is important to set user expectation levels by publishing the maintenance schedule, especially when users expect service 24 hours a day, 7 days a week. Maintenance is inevitable because the nature of the data processing business includes service pack updates, software upgrades, and hardware upgrades. Although rare, it might be necessary to take down the information store service to reduce the size of store files using the ESEUTIL troubleshooting utility, which is available on the Microsoft Exchange Server compact disc in the \Exchsrvr\Bin directory.