I'm using Intel Pentium D820 2.8 GHz, CPU cycles 20000 and using Full Mode in D-Fend.

Hi everyone ! Nice to meet all of you here in best DOS emulator software forum ! I'm an environmental scientist and i'm running several old air quality models such as MESOPAC II, MESOPUFF II ... in DOS mode right now, and they take me at least 3 hours - 6 hours to compute for a 12-month data series …