Microsoft Download Center Microsoft Data Access Components (MDAC) 2.8 SP1 contains the following overview:
Microsoft Data Access Components (MDAC) 2.8 SP1 contains core Data Access components such as the Microsoft SQL Server™ OLE DB provider and ODBC driver. This redistributable installer for the MDAC 2.8 SP1 release installs the same Data Access components as Microsoft Windows XP SP2.
This release does not include Microsoft Jet, the Microsoft Jet OLE DB Provider or ODBC driver, the Desktop Database ODBC Drivers, or the Visual FoxPro ODBC Driver.
Microsoft Knowledge Base Article contains the following summary: