You could have downloaded DuctDesigner 1.0 from our software library for free. The default filename for the program's installer is DuctDesigner.exe. Our built-in antivirus scanned this download and rated it as virus free. The software lies within Photo & Graphics Tools, more precisely 3D Design. The most popular version of the software is 1.0. This program is a product of University of Dayton.
From the developer:
DuctDesigner 3D® from QuickPen provides 3D CAD software for sheetmetal contractors who want to increase profitability by providing an interoperable solution that eliminates waste and improves the design-to-field process. The following viewers are available for DuctDesigner 3D®. The DuctDesigner 3D Viewer allows client computers to view DuctDesigner 3D models.
You may want to check out more software, such as VariTrane Duct Designer, which might be related to DuctDesigner.