Aug 2012. An interesting note. Over the last five years we have seen a strong move to Macintosh computers , Mac OS X. We have also noticed that among all Pest Control Software, this trend is continuing. PestaRoo runs beautifully on both Windows and Macintosh. We do notice that Mac users have far fewer hardware problems than Windows users. And so, if people ask, we recommend Macintosh for PestaRoo.