Xine and 64bit windows codecs

Hi, I am trying to play a windows avi on my amd64 suse 9.3 pro box. To no avail. On my 32bit box this required me to install w32codecs but this doesn't seem to work on the 64bit machine. So far I have been unable to find the 64bit equivalent of the w32codecs. How can I get xine to work with these codecs on the 64bit machine? Thanks!