http://www.cgted.com/
Its brilliant, i hope it works on W7 64 bit
this beats Nvida's normalfilter by a thousand and million times, be prepared to make better normalmaps then ever before!
tutorial: http://philipk.net/tutorials/ndo/ndo.html
some screenies grabbed from the site,
ill be so happy if this works for me
and i hope its usefull for you modders out there as well!