I recently installed Windows Server 2008 R2 for testing purposes but it's missing the Ethernet Controller driver and the driver that I've downloaded from Intel's database will not detect the card.
I had the same problem with Windows Server 2012 previously and I solved it by editing the e1c63x64.inf
I found the instructions here
I tried the same thing on Win Server 2008 but it did not work. I'm wondering if I have to edit a different file or something and if so, which file would that be?