Answer / rathakrishnan

If a dll is registerable and can keep the interface in COM
Runtime library then we can call that dll as COM dll

Answer / chandrasekharreddy siddamreddy

Inorder to call your DLL as COM dll, you have to follow
some rules to develop the dll. If those rules are there
then only your DLL will be called as COM dll.

COM is a specification set of rules to develope binaries,
COM is not a language.

What is IUnknown? What methods are provided by IUnknown?

3 Answers   IBM,

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can a COM interface be implemented by more than one COM class in the same COM component?

2 Answers   Cap Gemini, Honeywell,

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Define and explain COM?

8 Answers   Microsoft,

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How can would you create an instance of the object in COM

2 Answers  

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Write a JCL to copy only selected members from a partitioned data set to another partitioned data set. (Use: IEBCOPY)

1 Answers   Wipro,

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Let?s assume we have object B and aggregated object C (in- proc server), created by B. Can you access any interface of B from C? What?s the difference between aggregated and contained objects?

3 Answers  

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Explain queued components.

2 Answers  

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Which namespace do the classes, allowing you to support COM functionality, are located?

0 Answers  

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What are the different compatibility types when we create a COM component?

1 Answers   TCS,

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Explain object pooling?

1 Answers   HCL,

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Once I have developed the com wrapper do I have to still register the com in registry?

0 Answers  

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Can I use .net components from com programs?

0 Answers  

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