USB Ethernet Driver not reconized in bootcamp Window 7

I accidently uninstalled the Ethernet driver reader in my bootcamp Window 7. Now I could only use Wifi internet connection in my bootcamp. At work, we're only provided a DSL connection thus I need to use the USB ethernet driver adapter.

I try finding the programs on google but no luck. I also called Apple tech but they told me 'that's a window problem you'll need to contact them'. I called windows and they told me the copy of window isn't factory so I'll need to take it to the place where I bought it which is memory express. The window 7 run fine, it's reads the ethernet driver is connected, but it just doesn't know what to do with it. I've grown to the point of frustration. If anyone know where I could download that program and install it on my window so I could use the Apple Ethernet driver please let me know!

My last resort is the delete my bootcamp and reinstalling bootcamp.

Thanks for the help.