XADM: Event ID 179 Message Is Logged During Automated Directory Export (274009)

The information in this article applies to:

Microsoft Exchange Server 5.5

This article was previously published under Q274009

SYMPTOMS

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

Event ID: 179
Source: MSExchangeDSExp
Description: Unable to initialize directory user agent (DUA) workspace.

CAUSE

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

WORKAROUND

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

MORE INFORMATION

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:

155414 XADM: Bulk Import/Export FAQ

177938 XADM: Using AT Command for Command-Line Import/Export

For more information, refer to Microsoft Developer Network (MSDN) documentation on the DAPIStart in the Platform software development kit (SDK): Exchange Server.

Modification Type:	Minor	Last Reviewed:	4/25/2005
Keywords:	kbprb KB274009