An ADO connection manager enables a package to connect to ActiveX Data Objects (ADO) objects, such as a recordset. This connection manager is typically used in custom tasks written in an earlier version of a language, such as Microsoft Visual Basic 6.0, or in custom tasks that are part of an existing application that uses ADO to connect to a data source.
When you add an ADO connection manager to a package, Microsoft SQL Server Integration Services creates a connection manager that will resolve to an ADO connection at run time, sets the connection manager properties, and adds the connection manager to the Connections collection on the package. The ConnectionManagerType property of the connection manager is set to ADO.