How can i connected with wired network(Lan) ?

Dear Apple,

I have brought a Thunderbolt to Gigabit Ethernet from Apple Store in Hong Kong, New Town Plaza, DG. I have Bootcamp to window 7 before in my mac Book Pro, i plug the adapter in the window 7, but it seems like it is not working. However the wire is warm. I think it is the problem of Window 7 does not support the adapter. I really hope that you can help me solved the problem.