1)   S3Dfree 2000 6
S3Dfree 2000 is the FREE unregistered version of Solid3D. Solid3D Fastener library is a productivity tool for AutoCAD allows you to create solid models of assorted Nuts, Bolts, Screws and Washers.

 2)   Engineering Power Tools 1.9.8
ENGINEERING POWER TOOLS solves a wide variety of common engineering problems quickly and easily. Over 70 programs and data tables integrated into one easy-to-use package. Categories include Math, HVAC, Mechanical, Electrical, Materials & Structural.

 3)   MATruss 1.2
MATruss performs static strength analysis of a structure made up by truss elements. A thoroughly tested and reliable solver analyses the truss model and produces the data needed for design.

 4)   ShapeBook with 2D3DSteel 3.10
A structural steel reference and AutoCAD drafting tool for steel construction. View dimensions and properties. Search shapes by property values. Convert shape lists between US and metric. Based on AISC Manual of Steel Construction LRFD Third Edition.

 5)   FrameMaster 3.1
FrameMaster is a FEM-program that helps you dimension almost all kinds of constructions: roof-trusses, floors, walls, bridges,furniture, shafts and much much more. FrameMaster is both one of the cheapest and most powerful program in its category.

 6)   progeCAD Smart IntelliCAD 9.0.1.2
progeCAD AutoCAD DWG Clone, Free for personal use, no learning curve for AutoCAD users! AutoCAD Menu, Script, Font Compatibility, AutoLISP Compatibility! progeCAD Smart! is an easy replacement for AutoCAD and AutoCAD LT!

 7)   progeSOFT IntelliCAD Standard 2009.0.22.1
progeCAD AutoCAD DWG Clone, 1/10th the cost, no need for conversion! no learning curve for AutoCAD users. Windows 7 32,Windows 7 64, AutoCAD Menu, Script, Font Compatibility, AutoLISP Compatibility!

 8)   progeBILLD Electrics for progeCAD IntelliCAD 2009.0.28.6
Architectural DWG Design for progeCAD AutoCAD DWG Clone, No learning curve for AutoCAD users. Get AutoCAD functionality for 1/10th the cost. AutoLISP, VBA, ADS programming, import from PDF, Advanced Rendering, 3D ACIS Solid Modeling.

 9)   SolidStructural 10.1
SolidStructural - 3D Steel AuDetailing System running inside AutoCAD

 10)   progeBILLD HVAC Plumbing for progeCAD 2010.0.6.23
HVAC and Plumbing DWG Design for progeCAD AutoCAD DWG Clone, No learning curve for AutoCAD users. Get AutoCAD functionality for 1/10th the cost. AutoLISP, VBA, ADS programming, import from PDF, Advanced Rendering, 3D ACIS Solid Modeling.

 11)   progeBILLD Mechanics/Structural 2010.0.6.23
Mechanical/Structural DWG Design for progeCAD AutoCAD DWG Clone, No learning curve for AutoCAD users. Get AutoCAD functionality for 1/10th the cost. AutoLISP, VBA, ADS programming, import from PDF, Advanced Rendering, 3D ACIS Solid Modeling.

 12)   progeBILLD Base Architectural 2010.0.6.23
Architectural DWG Design for progeCAD AutoCAD DWG Clone, No learning curve for AutoCAD users. Get AutoCAD functionality for 1/10th the cost. AutoLISP, VBA, ADS programming, import from PDF, Advanced Rendering, 3D ACIS Solid Modeling.