COM

Interfaces

• IUnknown
• InProc Server (IClassFactory)
• OutProc Server
• Type Libraries
• Parameter Marshaling
• IStream, ISequentialStream
• IEnumXXX
• Clipboard
• Drag ’n Drop
• Persistence
• Other Interfaces
• UI Automation - Win32 apps (not to be confused with UI Automation - .NET Framework)
• Running Object Table (ROT)
• COM Events (not to be confused with Event Objects, or various UI framework events)
• Apartment Models

References

A large number of related types are part of OLE Automation , here are a few of the more common ones.

• BSTR
• Variant
• SafeArray
• Registry