Windows 2003 network at fully functional 2003 state. Migrated from an NT4 domain (also migrated an Exchange Server 5.5 to Exchange 2003 at same time). All is well in that regard. However, management doesn't like that you can still see and logon with the pre-Windows 2000 domain name credentials. Example: old domain name was ABCD (relating to a previous company name) and new domain name is xyz.abcdef.com
Although this presents no functional issues, management literally doesn't want anyone to be able to even see the ABCD old name EVER.
Is it possible to get rid of this? If so, how bad is it?
I'm aware that I can mod the registry through group policies to enforce fully qualified names for logon, but you can still see the old ABCD when you browse the network (under Microsoft Windows Network) and, of course, you can still use it.