ADO is the proposed standard for programming any kind of data source for which an OLE DB-compliant provider exists. You'll see how to utilize ADO with Visual Studio 6.0, concentrating on the Visual J++ language WFC classes and Visual Basic 6.0.
ATL 3.0 contains a number of enhancements you can use when writing ActiveX controls. Sometimes you need to build upon the functionality ATL provides before your control works well with common containers like Visual Basic.
Brent Rector and Chris Sells
The Universal Delegator (UD) is an interception framework for COM programming that provides the code necessary to compose services on top of existing COM objects. This month you'll explore its internals, and learn how to write services to plug into it.