Windows DAC (n)~ A suite of data access APIs that ship with the Windows operating system. Data Access Components includes three major API surfaces-€”ADO OLE DB and ODBC-€”each of which is optimized for a different set of applications. All three major components of Data Access Components employ the provider model which allows access to a variety of data sources using a virtually identical set of programmatic calls. Windows Defender (PN)~ Antispyware software included in Windows that can prevent other software from displaying advertisements (such as pop-up ads) collect information about you or change settings on your computer generally without appropriately obtaining your consent.