MDAC

Learn more about accessing SQL Server data with ADO, OLE DB, or ODBC.

Programming ADO SQL Server Applications
Learn how to use ADO to access SQL Server data.
ADO Performance Best Practices
Find out how to get the best performance from your ADO code when accessing SQL Server data in this article by Bill Vaughn.
Accessing SQL Server Named Parameters with ADO 2.6
Learn how to access parameter-based stored procedures with fewer lines of code and with fewer problems from passing in default or unneeded parameter arguments.

Return of the BLOB
Take a look at how to deal with BLOBs by using ADO and SQL Server.
Programming OLE DB SQL Server Applications
Learn how to use OLE DB to access SQL Server data.
Programming ODBC SQL Server Applications
Learn how to use ODBC to access SQL Server data.