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c#: why use DLLs?

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c#

dll

i'm working on a large c# project,i wonder why people use DLLs in their apps. I know that a dll file ( please correct if i'm wrong) contains some functions, but why don't we put those functions inside our main c# app?

Thanks

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trrrrrrm Avatar asked Jul 22 '11 17:07

trrrrrrm

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2 Answers

Most of it is summed up in the answer to this question, but the basic reasoning is "so you don't have to duplicate code".

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Daniel DiPaolo Avatar answered Sep 18 '22 04:09

Daniel DiPaolo

Code reuse. Usually dll files contain functions that are useful in more than one app, and to have them in a single compiled file is a lot easier than copying over all that code.

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David Avatar answered Sep 20 '22 04:09

David
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