Standard security using SQLNCLI OLEDB

Connection string

This SQL Native Client 9.0 OLE DB Provider connection string can be used for connections to SQL Server 2005, SQL Server 2000 and SQL Server 7.0.

Provider=SQLNCLI;Server=myServerAddress;Database=myDataBase;Uid=myUsername;
Pwd
=myPassword;

Are you using SQL Server 2005 Express? Don't miss the server name syntax Servername\SQLEXPRESS where you substitute Servername with the name of the computer where the SQL Server 2005 Express installation resides.

When to use SQL Native Client?