What is COM

[vbmom]

I feel so stupid. Can someone explain what COM and COM+ are? What about DCOM? Is they blanket terms for other things?

[Calibra]

I feel so stupid. Can someone explain what COM and COM+ are? What about DCOM? Is they blanket terms for other things?

What is com, well com is an way of programming which allows the reuse of code in any other programming lang.
For example an Com object could be written in C++, but it's members can also be used by VB(.net)/C#/Java etc etc

So com is nothing more than an way to create an universal interface to written code for use in any other lang that can handle com.

D(istrubuted)Com = Com+ (wel to keep it simple ;-) )

[vbmom]

So an activeX dll created in VB can be considered a COM object?

And distributed COM, isn't that the ability to call functions in a COM object from across a network-not needing the DLL to live/be registered locally?

[Calibra]

So an activeX dll created in VB can be considered a COM object?

And distributed COM, isn't that the ability to call functions in a COM object from across a network-not needing the DLL to live/be registered locally?

Yes ActiveX = Com
and DCom (or Com+ as it's called now) is indeed an method to create instances of com objects on other computers thru an network.

[vbmom]

That's always what I thought, I guess I am only familiar with creating VB activex dll's and using windows "com" libraries but never really thinking of them as COM. I think of everything as a library.