I'm in the process of upgrading my domain from 2003 to 2008 R2. I have a single forest and single domain with 6 domain controllers. My last domain controller that I'm decommissioning is a 2003 R2 DC that's running WINS on it. All of my workstations ares XP, 7, 8 and 8.1 and only have 5 servers left that are running Server 2000; all other servers are a mix from 2003 to 2012. My DHCP servers are configured to include my DNS servers and this old WINS server for all clients. My management won't allow me to disable WINS to see if anything breaks which is what I would like to do.
Is there any way to tell what clients might be resolving their requests in WINS rather than DNS?