A set of freeware applications for viewing/processing P-CAD files.
Access and convert ASC, BLF, DBC, and MDF files
Convert DXF drawings of circuit boards to gEDA-PCB files.
Convert Point Cloud to 3Dmesh for Revit
3D Engine with some extra features based on the D3x3D Engine for VB6
Insert PDF into DWG in AutoCad. Autolisp Frontend for PSTOEDIT