I have a customer running Exchange on an NT4 Server. I think it is Exchange 5.5, but I cannot get into the administrator to check the version.
When I try to run the Exchange Administrator I get the following message:
cannot find Dynamic Link Library WMSUI32.dll in the following path. Also in the event log I noticed Exchfilt.dll failed to load.
Exchange is up and running, but we cannot add or delete users.