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Special Edition Using SOAP by John Paul Mueller

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How SOAP Differs from DCOM and CORBA

SOAP, like DCOM and CORBA, is a wire protocol. The term wire protocol indicates that applications use SOAP to move data from one place to another. Many people assume that because COM and DCOM have similar names that they’re the same kind of protocol. COM is actually a specification that tells how to create components—DCOM enables those components to interact across a network. It’s an important difference to understand because Microsoft designed SOAP to overcome some of the limitations of DCOM, not to replace it or replace COM itself.

The first two sections below provide a comparison of SOAP with DCOM and CORBA. We’ll look at how the protocols compare from a result and method perspective. The essential difference ...

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