Several years ago I was able to run HEC-1 and HEC-2 in DOSBOX to verify old FEMA models. I have recently tried to run these programs in DOSBOX under WINDOWS 10. I was probably still running WINDOWS 7 back then. I get an error message “This program cannot run in DOS mode.” Anyone have a work around for running old HEC-1 or HEC-2 models on Windows 10. An old project has been resurrected where I was using HEC-1 and would like to avoid moving it to HMS.