XADM: Error Message: Could not open the file named Mdbmsg.dll (193707)

The information in this article applies to:

This article was previously published under Q193707

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

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

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

Modification Type:	Minor	Last Reviewed:	4/28/2005
Keywords:	kbprb KB193707