Ethernet Controller (missing) Windows 7

Hello, I've just gone from Windows XP to Windows 7. And I have no network connection, Im in device manager at the moment and my ethernet controller is missing. I have the motherboards driver disc, For all my drivers, And it is not letting me install my Lan driver. It gets to 75% then gives me SETUPX.DLL was not found. Ive tried to download SETUPX.DLL and add it into the windows\system32 folder.

RUN

regsvr32 SETUPX.DLL etc. But I get another error when doing this also.

I cannot seem to find compatable drivers for Windows 7 which match my Motherboard. Has anybody any ideas on how I can fix this?

I've tried adding varies of other similar motherboard drivers for Windows 7 but still no luck

My motherboard is '' Asrock K71S41GX ''


If anybody can point me in the right direction, Be much appreciated. Thanks