HillStormer is  free.


Nevertheless, the fully operative demo-version must be reactivated after 30 days requiring an activation code by e-mail. This code is free. Just  follow the instruction given in the activation-option of the program.  The program will then work  on this  specific machine without limits.


HillStormer  was developed for Windows XP (32 bits) but runs  also under Windows 7 or higher.   Before installing, check your computer also for the following requirements:


             -        at least 400 Mb of free disk-space 

              -        a screen resolution of 800 x 600 or higher

              -        previous installation of  .NET Framework 4.0 or higher

                        ( this software is free and can be downloaded from


                                                    Windows 8 and higher include already Framework 4.0.


Constrained nonlinear Optimization for Laboratory and Industry.
exe File 47.5 MB