Nice job. I downloaded, and after ignoring Peter Norton's warnings, it opened. It seemed pretty straightforward and worked reasonably well. It took me a while to find the 'Help' screen, but I did find it and open it - what is the difference between 'PPengHelpT' and 'PPengHelpW'? I will probably spend a little time comparing your program results to my graphical solutions using Acad software; however, it looks like it works great!

Thanks
Charles