COM Security FAQ
This document provides tips and techniques, as well as troubleshooting information, for developers of secure COM components. By Microsoft.

COM Security FAQ Ex2
A complement to the Microsoft COM Security FAQ. By Keith Brown.

Dr. GUI's Gentle Guide to COM
It explains how to create and use COM, components, and ATL. By Microsoft.

An Overview in Building Collections In Visual Basic Type ActiveX COM Objects
A tutorial describing the process of first creating a Visual Basic type COM Object with functions and then second, how call those same functions contained in the ActiveX DLL from ASP Scripts. By Derrald Farnsworth-Livingston.

Moon Valley Software
ActiveX tutorials and help: adding controls, registering controls, using controls, writing controls, control definitions.