x86 -> %RSSDK%\bin\win32
x64 -> %RSSDK%\bin\x64
Visual Studio only supports either x86 or x64 at a time.
Intel.RealSense.cs.dll
Intel.RealSense.Face.cs.dll
Intel.RealSense.hand.cs.dll
Intel.RealSense.handcursor.cs.dll
Intel.RealSense.Scan.cs.dll
Intel.RealSense.Segmentation.cs.dll