The Login screen allows the user to select a geodatabase. If you're working with a Mobile application such as Redliner, you'll most likely choose a backdrop database.
Select a database from the drop-down menu, enter a user name and password, and click OK. A password is not required for an Access database.
If you have ArcFM Viewer for ArcGIS Engine installed, values may be added to the drop-down menu using the ArcFM Engine Administrator.
The database version must match the application version. If you attempt to log in with mismatched versions, you receive the following message:
If you click OK, Engine Viewer opens as usual, but functionality is not supported with mismatched versions. Contact your GIS administrator if you receive the message above.