Difference between COM and DCOM

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What is difference between COM and DCOM?

Posted 3-Dec-09 22:48pm

vaishi1990

Updated 3-Dec-09 23:22pm

Rajesh R Subramanian

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Corinna John · Answer 1 · 2009-12-03T23:00:00

Solution 1

COM is a local component object model on one single machine.
DCOM is a distributed component object model working across several machines.

Posted 3-Dec-09 23:00pm

Corinna John

Vitaly Tomilov · Answer 2 · 2010-05-03T07:51:00

Also consider this, COM will prosper for many years to come, while DCOM has been dead for a few years now, because it contained security issues which Microsoft eventually gave up patching.

DCOM = COM + "Secure" Networking Transactions.

DCOM is however still in use by lots of old software, but only locally where security is not involved. Newer software within the same architecture logic today relies on Windows Services.

Akhil ....The Best · Answer 3 · 2009-12-04T01:22:00

Solution 2

Com is used for Desktop Applications(not distributed).
Dcom is used for distributed environment.
Dcom includes following->
1.Remoting
2.Web Service
3.Wcf

;)

Posted 4-Dec-09 1:22am

Akhil ....The Best