not able to find nunit.framework while using icsharplibrary

I am trying to code for unzipping a file after uplo开发者_如何学Pythonading it on the sever and using following library to achieve this:

http://downloads.sourceforge.net/sharpdevelop/SharpZipLib_0855_SourceSamples.zip

But i am not able to add reference nunit.framework in my application. Where can i find this framework? I am not able to find it in the sample project that they have provided.

Thanks

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You should be able to find what you are looking for at

NUnit Downloads