Williams converter?

[RJVegeto]

Hi, I saw a topic on this site for editing models and it mentioned the Williams converter. That's like, the only mention of it I can find. I've been tackling Google in the mud for a HINT on where to get it and I'm getting everything I don't want. Can anyone tell me where to get it/send it to me? As soon as I can get it I'll delete this thread (if I can't some moderator can, I just recently joined.)

Thanks