Integration with Internet Information Services

Exchange stores configuration information in Active Directory® directory service, whereas Internet Information Services (IIS) stores configuration information in the metabase. The metabase is a local configuration database shared by the protocols that IIS supports. The Exchange System Attendant service regularly replicates relevant configuration changes made in Active Directory through Exchange System Manager to the metabase. You can tell when the configuration replication has occurred by looking for entries in Event Viewer from the metabase update service (MSExchangeMU). To view MSExchangeMU events, in the server's properties, on the Diagnostics Logging tab, set the MSExchangeMU logging level to Minimum or greater.