There have been several deprecated components as well, such as the Microsoft Jet Database Engine, MSDASQL (the OLE DB provider for ODBC), and Remote Data Services (RDS).Some components have also become obsolete, such as the former Data Access Objects API and Remote Data Objects.The Microsoft SQL Server Network Library (also known as Net-Lib) is used by the Microsoft SQL Server to read and write data using many different network protocols.Though Net-Lib is specific to the SQL Server, Microsoft includes it with MDAC.The first version of MDAC was released in August 1996.At that time Microsoft stated MDAC was more a concept than a stand-alone program and had no widespread distribution method.The Super Socket Net-Lib deals with inter-computer communications and coordinates the secondary Net-Libs – though the TCP/IP secondary Net-Lib is an exception in that it calls on the Windows Sockets 2 API directly.The Banyan VINES, Apple Talk, Server Net, IPX/SPX, Giganet, and RPC Net-Libs were dropped from MDAC 2.5 onwards.
Microsoft has used this technology to separate the application from data can store in the website the data store that it needs to access.
The SQL Server uses the Open Data Services (ODS) library to communicate with Net-Lib, which interfaces directly with the Windows NT operating system line's Win32 subsystem.
The SQL Server Network Library is controlled through the use of a Client Network Utility, which is bundled with the SQL Server.
Each Net-Lib supported network protocol has a separate driver (not to be confused with a device driver), and has support for a session layer in its protocol stack.
There are two general types of Net-Lib: the primary and the secondary.