Welcome to the land of ‘Helpful’ WindowsOS. Best reference is on Technet. www.microsoft.com/technet/communitiy/columns/cableguy/cg0504.mspx
In Windows you can use Group Policies provided the Wired and Wireless are different domains or at least different IP address ranges.
If you used ‘best practices’ and the wireless is private addressed (i.e 192.68.xxx.yyy) and different from your wired network (i.e. 192.168.aaa.bbb) then the granted IP address can be used to make a rule turning off the ‘bridge’.