MathShapesPro2X 

With this AutoCAD add-on you can create mathematical curves. Curves can be defined as explicit, parametric or polar functions.
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TerrainSectionsPro2X 

With this FREE AutoCAD add-on you can create terrain sections from geodetic points(heights) in the drawing. You can also specify position of pipe(cable, road, ...) or set auxiliary marks in the section.
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DMENU for AutoCAD LT 

A complete and full menu replacement for AutoCAD LT LT97 through LT2006, geared towards the 2D ARCHITECTURAL and Interiors disciplines.
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DSYMS for AutoCAD LT 

A single Pulldown Menu symbols library Add-on for AutoCAD LT97 through LT2006, geared towards the 2D ARCHITECTURAL and Interiors disciplines.
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Points Export for AutoCAD 

Points Export for AutoCAD is a plug-in for AutoCAD. This plug-in gives AutoCAD the ability to export points to text files.
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Points Import for AutoCAD 

Points Import for AutoCAD is a plug-in for AutoCAD 2000, 2000i, 2002 and 2004. This plug-in gives AutoCAD the ability to import points from text files.
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