XADM: Error Message: Could not open the file named Mdbmsg.dll

• Microsoft Exchange Server, version 5.5

SYMPTOMS

When you upgrade from Exchange Server 5.5 to Exchange Server 5.5 Service Pack 1, the following error message may appear:

Could not open the file named <drive>:exchsrvr\res\mdbmsg.dll

Abort Retry Fail

CAUSE

The Mdbmsg.dll file is being held open by some process, usually the Event Viewer.

WORKAROUND

Close the process that is holding the Mdbmsg.dll file open and click Retry. The Exchange 5.5 SP1 Setup will continue.

Keywords : XADM
Version : WINDOWS:5.5
Platform : winnt
Issue type : kbprb