smbfs is a filesystem which understands the SMB protocol. This is the
protocol Windows for Workgroups, Windows NT or Lan Manager use to talk
to each other. It was inspired by samba, the program by Andrew
Tridgell that turns any unix site into a file server for DOS or
Windows clients.  See ftp://nimbus.anu.edu.au/pub/tridge/samba/ for
this interesting program suite and lots of more information on SMB and
NetBIOS over TCP/IP. There you also find explanation for conceps like
netbios name or share.

To use smbfs, you need a special mount program, which can be found in
the ksmbfs package, found on sunsite.unc.edu:/pub/Linux/ALPHA/smbfs.