Topic Last Modified: 2008-10-01

The Microsoft® Exchange Server Analyzer Tool reads the following registry entry to verify the working directory for the Microsoft Exchange Information Store service.

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\MSExchangeIS\ParametersSystem\Working Directory

The Exchange Server Analyzer displays an errorif the following conditions exist:

Exchange Server uses the working directory for temporary storage. For example, Exchange Server uses the working directory during the message conversion process. Exchange Server also uses the working directory to store a temporary database during defragmentation. If the working directory is not specified correctly, the following problems may occur:

By default, Exchange 2000 Server and Exchange Server 2003 sets the working directory to be the mdbdata directory under the directory where you installed Exchange Server. For example, if you install Exchange Server in the C:\Program Files\Exchsrvr directory, Exchange Server sets the working directory as C:\Program Files\Exchsrvr\mdbdata.

By default, Exchange Server 2007 sets the working directory to be the mailbox database directory under the directory where you installed Exchange Server. For example, if you install Exchange Server in the C:\Program Files\Exchange Server directory, Exchange Server 2007 sets the working directory as C:\ Program Files\Exchange Server\Mailbox\MDBTemp

To correct this error, specify the working directory as a directory that exists on your Exchange server.

Important:
This article contains information about editing the registry. Before you edit the registry, make sure you understand how to restore the registry if a problem occurs. For information about how to restore the registry, view the "Restore the Registry" Help topic in Regedit.exe or Regedt32.exe.
To specify the working directory using regedit
  1. Start Registry Editor (regedit).

  2. Navigate to: HKLM\System\CurrentControlSet\Services\MSExchangeIS\ParametersSystem

  3. Update the Working Directory registry value with the correct working directory for the Microsoft Exchange Information Store service, such as C:\Program Files\Exchsrvr\mdbdata.

    Note:
    This change does not require that you restart the Microsoft Exchange Information Store service.
  4. Close the registry editor.

Before you edit the registry, and for information about how to edit the registry, see the Microsoft Knowledge Base article 256986, "Description of the Microsoft Windows Registry" (http://go.microsoft.com/fwlink/?linkid=3052&kbid=256986).

For more information about the Working Directory registry value, see the Knowledge Base article 298415, "Messages that have attachments are not delivered as expected, and Event ID 12003 and 327 messages are logged in Exchange 2000 Server and in Exchange Server 2003" (http://go.microsoft.com/fwlink/?Linkid=3052&kbid=298415).