I don't know that it's possible. AFAIK they use different systems. Your best bet is to try to find where it came from and see if they have a windows one. Alternatively you can look and see if there is an open-source port. You'd be surprised how many screensavers there are that look quite similar to 3rd party one's.
"Here we stand at the threshold of paradise, stealing a new world. I never would have thought our place in history would come to this, but we are infinite. We are one." -Spencer Sotelo