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Difference between W95/98 and NT

Posted on 1999-01-25
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Last Modified: 2010-04-16
What are the main differences between programming for windows 95 and NT? In visual c++ I don't seem to have to do anything other than specify which platform I want my executable for. I would like to train myself into NT, do I have to make any major changes to my programming style
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Question by:gavinpat
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PinTail earned 150 total points
ID: 1185078
In general any program written for 32bit Windows (Win95/Win98) will work under NT.  There are some API differences which may cause unexpected results ( you can usually see these differences by checking the help for a particular API function.)  In general the NT API has more functionality, especially related to Security, Networking, and Process and Thread control.


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by:gavinpat
ID: 1185079
So what makes NT a more stable platform?
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by:PinTail
ID: 1185080
Well, I think the main thing is that NT has dedicated process address space.  This means that a well behaved application has no way to corrupt another applications memory.  The reality is a little different since it is possible to write a program which 'injects' itself into another processes address space, but you would have do do this sort of thing intentionaly.
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by:gavinpat
ID: 1185081
Sounds good, does that mean that the heap is divided into individual sections for each process then? I thought that windows 95 already had this, well thanks for the input, I will have to go and read more on this obviously.
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by:PinTail
ID: 1185082
Yes, the heap is process specific, which is why if create a process, and are really carefull, you can step into the C-Runtime code and see a call to GetProcessHeap() and HeapAlloc()
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