declare @SmoDefaultFile nvarchar(512)
exec master.dbo.xp_instance_regread N'HKEY_LOCAL_MACHINE', N'Software\Microsoft\MSSQLServer\MSSQLServer', N'DefaultData', @SmoDefaultFile OUTPUT
declare @SmoDefaultLog nvarchar(512)
exec master.dbo.xp_instance_regread N'HKEY_LOCAL_MACHINE', N'Software\Microsoft\MSSQLServer\MSSQLServer', N'DefaultLog', @SmoDefaultLog OUTPUT
SELECT ISNULL(@SmoDefaultFile,N'') AS [DefaultFile], ISNULL(@SmoDefaultLog,N'') AS [DefaultLog]