XADM: EDBUTIL /d <Path to Dir.edb> Causes NT 2140 Error (131727)

SYMPTOMS

If Edbutil /d <path to Dir.edb> is run from the Exchsrvr\Bin directory, the following errors will occur:

In some cases, such as RC2 to RTM upgrade, a dialogue box will appear before Edbutil finishes saying that Chkdsk needs to be run and that the Exchsrvr\Dsadata directory is damaged and corrupt. After this dialogue is cleared, Edbutil will finish successfully.
When the Microsoft Exchange Directory Service is restarted from Control Panel Services, the following error message will be displayed:
Could not start the Microsoft Exchange Directory Service on server \\<server name>. Error 2140: An Internal Windows NT error occurred.

WORKAROUND

Edbutil will create an Edb.chk, Edb.log, Res1.log and Res2.log in the directory in which it is run. When the Directory Service starts up, it is looking for these newly created files and cannot find them in it's working directory (Exchsrvr\Dsadata). There are two workarounds for this problem:

Run Edbutil in the Dsadata directory as follows:
C:\Exchsrvr\Dsadata>C:\Exchsrvr\Bin\Edbutil /d C:\Exchsrvr\Dsadata\Dir.edb
Where C: should be replaced with the appropriate installation drive letter. This will cause the .log files and Edb.chk file to be created in the Exchsrvr\Dsadata directory.
Move the Edb.chk, Edb.log, Res1.log, and Res2.log files from the directory where Edbutil was run, into the Exchsrvr\Dsadata directory.

After performing either of the above steps, restart the Directory Service.

STATUS

Microsoft has confirmed this to be a problem in version 4.0 of Microsoft Exchange Server. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.