Native dll in c# web app

[schueffp at mskcc.org]

Hello,

I try to make a .net webapp for a openslide viewer. Openslide depends on 20 native c++ libraries which i cannot reference in the c# project (visual studio 2015). (iconv.dll, libtiff-5.dll, ...)

It keeps saying that those libraries are not a valid COM assembly. Or that they do not have an entry point. 

In a normal C# app, I simply would copy the dlls to the /bin folder. Then they are loaded when the program starts. However, this does not work for a webapp (it keeps saying that openslide or one of its dependencies is not found). 

Is there a way to generate valid COM assembly dlls which can be referenced in VS15 in the project?

Or can I maybe rebuild the dlls (how)?

Thanks,
 Peter
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