Process %1 (PID=%2). Failed to read from metabase. Metabase object %3 can not be found. OAB synchronization suspended.

This Error event indicates that the Microsoft File Distribution service could not find one or more offline address book objects in the metabase. The metabase contains configuration information about the offline address book virtual directory that links to the offline address book objects. The File Distribution service requires offline address book virtual directory information to distribute offline address book files.

This event may occur because of corrupted metabase or configuration problems in offline address book virtual directory.

To resolve this error, follow these steps.

• Open the Internet Information Services (IIS) Manager console.

• Expand the Web Sites container and then expand Default Web Site.

• Make sure that the Default Web Site container has the OAB virtual directory. If the OAB virtual directory does not exist, you can create a new virtual directory using New-OABVirtualDirectory Exchange Management Shell command.

You may have to re-associate existing offline address books with the new OAB virtual directory. This process is also referred to as enabling Web-based distribution.

• Review the Application event log for related events. These related events may indicate a corrupted metabase. If the metabase is corrupted, you must restore the metabase. For more information, see Working with the Metabase (IIS 6.0) on Microsoft Windows Server 2003 TechCenter.

Note  If you are not already doing so, consider running the tools that Microsoft Exchange offers to help administrators analyze and troubleshoot their Exchange environment. These tools can help you make sure that your configuration is in line with Microsoft best practices. They can also help you identify and resolve performance issues, improve mail flow, and better manage disaster recovery scenarios. Go to the Toolbox node of the Exchange Management Console to run these tools now. For more information about these tools, see Toolbox in the Exchange Server 2007 Help.