TAP (Truss Analysis Program) version 3.0 is a simple but flexible tool
that has a single function - it calculates the forces in a pin-connected
truss under distributed and concentrated loads. It was written to reduce
the design time of light guage steel trusses, but is equally valid for
TAP has been tested under AutoCAD Rel. 12 for both DOS and Windows. Any
system that will run these versions of AutoCAD should also run TAP.