COM/DCOM is now what?

[Rolando Cruz]

Hello to all, About 8 years ago I developed an client/server application for a client of mine using DCOM. I have not touched the subject since then. :-> I now have the need to revisit this technology but with all of the changes in software development I do not know what is being used now. :~ Is DCOM still alive and kicking? Do I look at Web Services? :confused: Thanks for your help in this matter.

Rolando :suss:

[bob16972]

COM,DCOM,COM+, then came .NET I used DCOM a few times but I regret it since it's so darn slow. I found the books on DCOM and COM+ are better used as references for COM techniques than for the technologies they represent directly.

Rolando E. Cruz-Marshall wrote:

Is DCOM still alive and kicking? Do I look at Web Services?

I could be way off, but from what I've seen DCOM was never really alive and kicking, IMHO.

[James R Twine]

IIUC, .NET uses COM behind the scenes, for some things...  Note sure if specifically DCOM, but anything is possible.    If specifically asking about remote object access, then yes, SOAP and web services are likely the way to go.    Peace!

-=- James
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[Rolando Cruz]

In your opinion, is there an equivalent to DCOM in .Net? Is it Web Services? It's been so long since I've worked with this I'm not sure which direction to go...

Rolando :suss:

[Rolando Cruz]

I'm adding more information to this thread as to what I want to accomplish. I need to develop an application which will be monitoring phone lines (Call Center). I want the client application to be notified when a specific line receives a phone call. I think this approach will be more efficient than querying the database every 30 seconds (or so) to see if a new call came through. Simple as that. Now, does this mean the Web Service does all of this work (line monitoring) or do I also have to create a separate Web Service (DCOM) and end up witha three tiered application? :~ (Line monitoring App / Web Service / Client App). Thanks all for your suggestions. :-D

Rolando :suss:

[Matthew Faithfull]

Just a suggestion but for the Line monitoring I'd write a Windows Service and I'd have it talk to the client application using Sockets. Web technologies are not the best for Push applications where communications are initiated from the server end. Also that way your client can be remote from the server. A two tier no Web no COM approach if you like. If you do want a web front end then I'd go three tier with the web server hooking into a non visible version of the client app and for that I probably would use DCOM, or Connection Points or even a named pipe if the Presentation and Middleware layers could be combined. Depends if you'll need a Web Farm :-D

Nothing is exactly what it seems but everything with seems can be unpicked.

[Rolando Cruz]

Excelent suggestion! :-D I believe this would be the better way to go. I did not think about the Sockets. Cool. Thanks for your help.

Rolando :suss: