The important network configuration rewrite happened in NT5, IIRC, with the introduction of NETSH.EXE and its Cisco-ish command line interface. (It's still ther

The important network configuration rewrite happened in NT5, IIRC, with the introduction of NETSH.EXE and its Cisco-ish command line interface. (It's still there in windows 11 and is probably the powerful way of interacting with network stack). The infamous rewrite didn't change the structure of networking in NT too much, there was also quite a lot of activity before and after (windows server 2016 delivered considerable changes, for example, though some of them were present already in 2012 mainly due to Hyper-V).