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Can I use 3rd parties in my C#/WPF application?

akohan asked
Last Modified: 2014-09-07
Hello experts,

I'm using three 3rd party software to develop my own application and all of them are open source such as:

MahApps.Metro at  https://github.com/MahApps/MahApps.Metro
Rhino at https://www.nuget.org/packages/Rhino.Licensing/
log4net at http://logging.apache.org/log4net/

 Open Source concept seems a broad topic to me and it is not clear as far as copyright. if I decide to sell my product do I need to get a license from these providers or just giving credit and addressing them on my website would be enough? I even did contact one of the provider and his response only was that he is not a lawyer so he cannot advise me! but then said that I have to address them, which absolutely is right and fair. Yet , I'm not sure if I can sell my product. any idea?

Thank you,
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