is commercial software from Labcenter Electronics. If you have obtained it from a source that says “free” or “with crack / keygen / patch” (especially if the filename includes --INSTALL ), that is almost certainly pirated software .
Proteus 8.9 SP2 is a versatile Medium for professional PCB design and simulation. Proteus 8.9 Sp2 Professional With Arduino 1.8 Free --INSTALL
Pirated versions often contain: