I just added a Windows 2012 server to my domain (decomisioning an old Win2003 DC). I added DHCP and DNS roles no problem, but I cannot find WINS
When I look at services I see WINS is already running. Strange...why?
If WINS is already installed, run mmc.exe. Click on Add/Remove Snap-in. Add the snap-in for WINS.
WINS is very crusty and Microsoft probably wishes it could ditch it, but there are many customers out there who still rely on it... unfortunately.
Oh and if you mean to install WINS, it's in the Features list, not Roles.
My only guess is that you upgraded this DC in place from an older version of Windows Server that already had WINS on it. Server 2012 doesn't install WINS by default in a fresh installation.
You dont need WINS at all. You should be able to stop the service and have no problems on your network because all the informations needed for the clients are comming from DHCP