>>Just a SWAG, but in the Data Source isn't the ".\" syntax referring to the local machine? Is the SQL server you're trying to attach to on the local machine, or a remote one? If remote you might need something like

Data Source=\\MachineName\InstanceName

>
>It is local.
>
>I also tried:
>
>

>lcSQLString=[Driver={SQL Server};Server=./SQLEXPRESS;Database=test;Trusted_Connection=yes;]
>lcSQLString=[Driver=SQL Server;Server=./SQLEXPRESS;Database=test;Trusted_Connection=yes;]
>lcSQLString=[Driver={SQL Server};Server=./SQLEXPRESS;Database=test;Integrated Security=SSPI;User Instance=yes;]
>lcSQLString=[Driver=SQL Server;Server=./SQLEXPRESS;Database=test;Integrated Security=SSPI;User Instance=yes;]
>

>
>I always get SQL Server does not exist or access denied.

Have you tried without the "./" in the server name?