>>>>Performance ?
>>>>
>>>>Thanks
>>>>eric
>>>
>>>Two names for the same thing. COM is the name MS is currently pushing. DDE was an early version of it too.
>>
>>DDE was not an early version of COM. It used (and uses) a completely different set of mechanisms for communication.
>
>Just to clarify a bit...MS took the knowledge they gained from DDE and applied to OLE/COM. What they found was that it didn't work too well and designed a better way.

Craig,

And this isn't directed at you, anyone wanting more knowledge about the subject (and with access to the MSDN library) should check out Technical Articles/Component Object Model. OLE is a subject beneath that, and includes a paper "What OLE Is Really About by Kraig Brockschmidt, which gives the history and background.