I completly disagree with Filthpig (I don't disagree often)
You don't need WINS for a LAN. No matter what version of Windows you are running, your Browser Service (if well configured) will do the job for a LAN like a WINS. The "Computer Browser" service was integrated as of Windows for Workgroups 3.11 (for peer to peer networking).
If you have several subnets, you will need WINS if you want people to access machines across the routers via their computer names.
What I think Filthpig means is that you can use a DNS to resolve the IP names across several subnets. For example, let's say computer SERVER2 (a server that is across a router) is in the DNS as IP 192.168.0.4. If you try to attach to a computer across a router without WINS, you will need to use the IP (ex: \\192.168.0.4\<share>). With WINS at both ends and synchronizing, you will be able to type: \\SERVER2\<share>, but if you PING SERVER2, your DNS will answer 192.168.0.4.
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