Windows 7: Automatically disable wireless when connected to Wired network

We just recently implemented wireless in our company, now we just need to figure out how to have the wireless automatically disable when a user is either docked or connected to the wired network, then enable the wireless once they are disconnected from the wired network.  Due to the size of our company, we cannot manually touch every single laptop to make any changes so I am looking for process that will do this automatically. We are using Dell Latitude laptop, I have check the BIOS and it does not support the feature of disabling the wireless when wired function. I am hoping someone on here has run across this issue, and has the fix. Any ideas, comments we be greatly appreciated.