Requirements: !DirectShow SDK, included in [http://www.microsoft.com/downloads/en/details.aspx?FamilyID=c17ba869-9671-4330-a63e-1fd44e0e2505&displaylang=en Windows SDK], tested with Windows SDK for Windows 7 and .NET Framework 3.5 SP1. The minimum components needed are Win32 headers and libraries and Samples. Add the include and lib directories path to Visual Studio configuration. Look for the Baseclasses project, and add the include path to Visual Studio configuration. In the property of the Baseclasses project, change the code generation to Multi-threaded Debug, instead of the default Multi-threaded DLL. Compile the baseclasses project in the samples, and add the resulting library to the path of Visual Studio configuration [http://www.libsdl.org/release/SDL-devel-1.2.14-VC8.zip SDL 1.2 Win32 Development Libraries]. Unzip and add the include and lib directories path to Visual Studio configuration. ffmpeg dev lib from http://www.pjsip.org/tmp/ffmpeg-dev-gcc4.zip config_site.h: {{{ #define PJMEDIA_HAS_FFMPEG 1 #define PJMEDIA_VIDEO_DEV_HAS_SDL 1 #define PJMEDIA_VIDEO_DEV_HAS_DSHOW 1 }}}