In Microsoft Exchange 2000 Server, when you try to expand a public folder tree in Exchange System Manager, you may receive the following error message:
A dynamic link library (DLL) initialization routine failed.
Facility: Win32 ID no: 8007045a Exchange System Manager
This issue may occur if one or more of the following files in the Drive:\Winnt\System32 folder on the server are missing:
To resolve this issue, make sure that the following files are present in the Drive:\Winnt\System32 folder on the server:
If one or more of the .dll files are missing, copy the files from another server that is running the same version of Microsoft Windows 2000 as the server where Exchange 2000 is installed to make sure that the correct versions of the files are copied to the server.
For more information about Exchange 2000 Server, visit the following Microsoft Web site: