A command-line utility in Microsoft Exchange Server for checking the consistency of the information store databases at a higher level than the eseutil utility does. The isinteg utility checks for problems relating to referential integrity of the information store databases that are preventing the information store services from starting or are preventing users from accessing their stored messages. Such a situation can arise after the information store is restored from an offline backup.
You can run isinteg (which stands for the Information Store Integrity Checker) in two different modes:
The isinteg utility is located in the Exchsrvr\Bin directory on an Exchange server. You should not use isinteg as part of your regular Exchange server maintenance plan - it is intended only for troubleshooting use, especially in consultation with Microsoft Product Support Services.
Always back up your information store databases before running this utility!