Understanding COM Interop

  • Tom Barnaby


What does COM interoperability have to do with distributed programming? Good question. In a perfect world where all code is managed by the .NET runtime and there is infinite time to complete projects, this chapter would not be needed. I don’t have to tell you that this is not a perfect world. And not even Microsoft has infinite time to complete projects. Therefore, for the initial release of .NET, Microsoft decided to leverage the existing COM+ code instead of rewriting it in managed code. So when hosting managed objects, COM+ must use the COM interoperability services provided by .NET. To be sure, you can skip this chapter and go directly to the sexier COM+ material. However, when you start implementing COM+ components in managed code, some COM+ behavior may surprise and confound you if you are not familiar with the concepts presented here.


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© Tom Barnaby 2002

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  • Tom Barnaby

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