I found this at office in 
Autodesk Discussion Group, which blocked by websense. I have to check it back at home. 
Snippets and Musings: .NET Remoting and AutoCAD Managed Wrappers (Part 1). I thought it would usefuly in the near future. I already have something in mind, like: from ASP.NET, start AutoCAD, create DWF file. 
  Good work, MKing. I am looking forward reading ...