More about ArcGIS for AutoCAD 300
You can have the 3.0 version of ArcGIS for AutoCAD 300 3.86 MB from this site. Environmental Systems Research Institute, Inc. has made this program and distributes it free of charge. The software belongs to 3D Modeling in the Photo & Design category. The direct download link was checked by a number of antivirus solutions and was proved to be clean.