can't install Services for Macintosh on NT4.0

[c0r3file]

I'm attempting to setup Services for Macintosh on an NT4.0 sp6 box. When I go to the network services window and click the 'Add...' button, the Services for Macintosh item isn't there. (?) Any ideas? I was able to install Appletalk protocol, but I don't know if its exactly the same thing (I don't think so).

thanks in advance...