No, I believe it's just called lanman, I think that I got it from jenda's pages.. but I can't get there right now. Not sure if maybe the activestate ppm rep has it?
Try http://jenda.mccann.cz/ and see if you can hit it.
UPDATE: found the working link
here and as much as I agree with tye's rant below, this is a really good module, why it's not on cpan is beyond me.
Another update: This IS on cpan, just didn't see it the first glance I took, check the win32 directory and look for lanman.1.0.8.1.zip - no win32 in front :-)