This patch is an updated version of bind 9.4.2-PL2 and is based on the original patch developed by Nicolas Moldavsky. Therefore please note that this work was mainly done by that person. However the patch he is currently distributing is outdated and he did not replied to my email so I was pushed to release it this way. You can find description of what does this patch do and how to use it at http://www.caraytech.com/geodns/.