Before revision:  In a first numerical study we demonstrate a backward dual regression algorithm in a Wiener environment that is easy to implement and is regarding accuracy comparable with the method of Belomestny et. al. (2009)  .
After revision:  In a first numerical study we demonstrate a backward dual regression algorithm in a Wiener environment at well known benchmark examples. It turns out that the method is at least comparable to the one in Belomestny et. al. (2009) .