This message was posted on behalf of Intel Corporation
Thank you for writing in Wired Communities. PWLA8494MT (Intel PRO 1000 MT Quad Port Server Adapter) is supported in Windows* 7 using the built-in driver provided by Microsoft*, however, there is no Intel provided driver for this NIC which means there is no PROSet software and Intel ANS (teaming and VLAN service) available for this NIC.
You may refer to the link below for reference and refer to the explanation therein.
Hope the above information help.