EXEC sp_addlinkedserver 'exchange',
'Exchange OLE DB provider',
'exoledb.DataSource.1',
'file:\\.\backofficestorage\mailservername\public folders'
Error received:The OLE DB provider "exoledb.DataSource.1" has not been registered.
Does the Exchange Ole DB Driver exist on the SQL Server machine? I am assuming the 2 services are not on the same machine. If not, you may need to install the Exchange SDK or management tools on the SQL Server to get the OleDB driver installed.