by Visio
4 used & new from $29.99
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IntelliCAD delivers an extraordinary combination of benefits to new and longtime CAD users, including the ability to read, write, and display DWG files without conversion; extensive support for AutoCAD commands, AutoCAD syntax, AutoLISP and ADS programs, and other legacy AutoCAD tools; unique productivity features that streamline your workflow; and seamless integration with the Microsoft Windows desktop. IntelliCAD - isn't it time you had a real choice?