XADM: Event ID 179 Message Is Logged During Automated Directory Export

When you perform an automated export of the Exchange Server directory, the following event ID message may be logged in the Application event log:

This issue can occur because there is a resource limitation in Dapi.dll; the maximum number of directory operation sessions is 10.

To work around this issue, schedule exports to be run sequentially rather than simultaneously.

For additional information about how to schedule batch files that export the directory, click the article numbers below to view the articles in the Microsoft Knowledge Base: For more information, refer to Microsoft Developer Network (MSDN) documentation on the DAPIStart in the Platform software development kit (SDK): Exchange Server.