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Domus.Cad is an architectural 3D CAD program. It is a tool for the design and modeling of architecture, interior, landscape, and urban spaces. With Domus.Cad you can immediately begin to create three-dimensional elements without needing to start from a two-dimensional plan. Elements such as walls, floors, roofs, and stairs are created from the onset in their full three-dimensional form

Download Domus.Cad 14.1.

Copan for Windows
Copan for Windows enables you to calculate coordinate geometry (COGO), process field surveys, adjust map traverses, perform map/deed closure checks, calculate areas and perimeters, transform coordinates, and import/export Ascii files. It's free.

FlashDWG-DWG to Flash Converter 2005
FlashDWG is a dwg to flash converter, is the best way to share and publish AutoCAD DWG files on the web. FlashDWG is a dwg viewer without need of dwg viewer. demo file: http://www.autodwg.com/dwg-to-flash/flash2.htm

NewCADtools2
NewCADtools2 is a package of 51 productivity tools and commands for AutoCAD and derived platforms. It contains 5 toolbars(MODIFY,MODIFYII,TEXT TOOLS,MISCELLANEOUS,SHAPES). There is also menu that can be added to the main AutoCAD menu.

ProgeCAD DWG Viewer
Free 30-day trial of DWG drawing viewer, plotting, rendering, PDF output! High precision measuring, zoom. pan, all the features you need to review your AutoCAD drawings and output them to paper. Easy to use,

DICOM Dumper
DICOM Dumper is a free and simple Java-based utility for decoding and dumping the content (Data Elements of the Data Set) of DICOM 3.0-compliant files. Since it is Java-based, it runs on every OS for which a Java Runtime Environment is available.