7473: A SQL database could not be detached or deleted.
March 12, 2004 | KB: 90331
https://support.laserfiche.com/kb/90331/7473-a-sql-database-could-not-be-detached-or-deleted-
Laserfiche 6, Plus 6
Summary
The database was not deleted or detached.
Workaround
Check the following:
Make sure that you have enough permission to perform the desired action.
Make sure that the database files have not been renamed or moved.