Running Windows 7 as a dual boot on an Acer Netbook, probably for a couple of months.
Unfortunately I cannot remember the last time I actually looked at the router so I cannot say when these new rules appeared.
With that said, the IP 192.168.1.4 is my desktop machine and that has only run XP and has since 2003.
I did find this: »msdn.microsoft.com/en-us ··· %29.aspx
It's dated 7-2-10 and does not mention Win7 but does mention XP with Sp2, so I guess anything could happen.
Not sure how a networked computer can change the router settings when it's correctly password protected (not admin / password etc)