Community
RealDWG is a subset of AutoCAD .NET API (without interface libraries). You can store database linking as Extension Dictionary of 3D entities (locally) or Named Objects Dictionary of DWG database (globally). RealDWG supports import/export 3D drawings.
You can share your image at any online image sharing such as (tinypic.com , flickr.com). Or you can drop me email at info<at>netonapp.com