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Question 
Difference between COM and .NET component ?
 Question Submitted By :: Hemanth Desai
I also faced this Question!!     Rank Answer Posted By  
 
  Re: Difference between COM and .NET component ?
Answer
# 1		 
COM vs .NET Component

COM=Object based communication	
.NET Component=Interface based communication

COM=Garbage Collector to manage memory
.NET Component=Reference count will be used to manage memory

COM=Type Standard objects	
.NET Component=Binary Standard objects

COM=Objects are created by normal new operator	
.NET Component=Objects are created by coCreateInstance

COM=Exceptions will be returned	
.NET Component=HRESULT will be returned

COM=Object info resides in assembly files 	
.NET Component=Object info resides in Type library
 
Is This Answer Correct ?    0 Yes 4 No
Rajeev
 

 
 
 
Other COM+ Interview Questions
 
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Explain queued components?  1
Define security?  1
Explain loosely coupled events?  1
what are wrapper Classes? Tech-Mahindra2
What happens when we instantiate a COM component ? DELL1
Is the COM architecture same as .Net architecture? What is the difference between them?  1
How will you register com+ services?  2
What is COM?  1
Disadvantages of com components? Microsoft2
Explain role-based security?  1
Define scalability?  2
How do you make a NET component talk to a COM component?  1
What is CCW (COM Callable Wrapper) ?  1
What is the new three features of COM+ services, which are not there in COM (MTS) ?  1
Explain object pooling?  1
Define reliability?  1
Is the COM architecture same as .Net architecture? What is the difference between them ?  3
Define availability?  1
Which namespace do the classes, allowing you to support COM functionality, are located?  1
Explain JIT activation?  2
 
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