where do include all additional unmanaged dependency dll in windows phone app

Question

i want to import some C++ unmanaged dlls into my windows phone app. can i do this ?? while debugging the dll not found exception thrown. can anyone help me to where do i place my those dependency dlls .

thank you ...

Answer 1

It depends on the DLL. If the DLL is built using only API available to Windows Runtime apps then you can use it. See Win32 and COM for Windows Runtime apps on MSDN for a list of the available API. You won't be able to use a DLL built for a desktop system (you cannot run x86 or x64 on ARM) but will need a specific phone build.

To use it you will need to include it in your appx package. In Visual Studio's Solution Explorer add the DLL to your project and edit its properties to mark its Build Action as Content. When you build the app check to make sure it is in the appx directory. That will deploy the DLL with the app so it is available at runtime.

Answer 2

For me it was due to having WIC code in my App and/or calling CoCreateInstance in a windows phone environment ( on PC it works flawlessly though )