Inspection tool for AutoCAD Database (DWG) created with .NET.
Open the MgdDbg.sln with Visual Studio (this version was tested with Visual Studio 2015). It should Build as is. If references are missing, go to project properties, Reference Path tab and adjust the AutoCAD install path.
Start AutoCAD, type NETLOAD command, select the DLL under /bin/debug/MgdDbg.dll. Right click on the drawing area, the menu item MgdDbg should appear with the options.