AcadCalcStair 4.0 that could have been downloaded from our website for free. The most popular versions among the program users are 4.0 and 1.0. AcadCalcStair2000.exe, AcadCalcStair2004.exe and calc.exe are the most frequent filenames for this program's installer. The actual developer of the program is NYacad. AcadCalcStair belongs to Photo & Graphics Tools.
From the developer:
AcadCalcStair: the program for calculations in AutoCAD (any formats of numbers) and Stair & Rail drafting. With this program you can do mathematical operations; calculations of triangles, slopes and stairs. Results of calculations can be used directly for performing AutoCAD commands: move, copy and others.
You may want to check out more software, such as CAD To DMC, TachyCAD or GeoMoS, which might be related to AcadCalcStair.