Analysis program for plane (2D) frames, with text based graphical user interface (eg. popup menus), and screen graphics for action-effects.
It only runs in MS DOS, or a command prompt in MS Windows XP, it may run under other versions of MS Windows but not the 64 bit versions.
NB: If want to analyse a single span beam, then it requires at least three nodes to define: two supports and an internal point such as midspan. (eg. a segment has to have at least one fixed end moment (FEM))