Installation procedure for OpenCV on Windows

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i don't think there is any reason to not use CMake

I think there's one: Because it's not necessary, as there are prebuilt lib's and dll's available in the installation folder. I didn't mean to offend anyone, but if you read my tutorial, you'll see that I just use the precompiled dll's and libs that come with OpenCV 2.4.2.

i didn't downvote you, indeed i don't think you answer needed a downvoted

Here is my +1, but I would suggest to provide updates for existing OpenCV tutorials, to make them more useful. There is no point in posting duplicating instructions everywhere. You can work on a pull request for existing tutorial (https://github.com/Itseez/opencv/pulls), or submit a new one (http://docs.opencv.org/doc/tutorials/introduction/how_to_write_a_tutorial/how_to_write_a_tutorial.html#howtowritetutorial).

And CMake has one very attractive feature. You can build your library (you should always design libraries, and then link them in your apps) for many platforms with a single build script. This is how you can easily write cross-platform libraries and then use them for your Win/Lin/iOS/Android development. I know it may be an overkill for a Windows demo, but it may become a good engineering practice, you will feel it ;-)