PowerCAD CE Classic 5.1
the author of this app says:
This program offers portable CAD computing with nearly 200 AutoCAD-compatible commands. You can view, mark, edit, create, and collaborate on designs and drawings. PowerCAD runs as a self-contained portable CAD system. It also serves as a mobile extension for PowerCAD Pro, AutoCAD, and other desktop systems that use DWG, DXF and FLX file formats.
- Microsoft ActiveSync version 3.1