Hi Lance,
Thanks for the hint.
I will give some more details about my project.
I am working on an enterprise Silverlight application. There we use prism framework. Newly we decided to add a gis part.
There we need similar things as it is available in Silverlight Viewer.
To implement this module we use Esri API for Silverlight.
Esri Silverlight Viewer is based on Esri Silverlight API. But it looks like this is not the only SDK.
In viewer, the extensibility SDK is also used. And many other libraries which can't be combined with ESRI Silverlight API. The combination would accelerate the development enormously.
The list can be found in the screen shot.
I am wondering where all these dlls are/come from (except Viewer.dll) this I won't need. That's why I did not ask this question in the Viewer forum. This forum also does not seem to be the correct one either.
Thanks
Ali