Christopher Eck's CLR Interop corner How do COM objects interact with the CLR type system? This is a question that actually covers a lot of ground in the VM, so I’ll be discussing this in parts over my next few entries. I highly recommend reading the information located under this node in the online MSDN documentation: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpguide/html/cpconadvancedcominterop.asp By atg1972in Develop > .NET > Interopwith clrcomdevelopinteractinteropnetobjectstype