According to Intel:
http://www.intel.com/support/network/sb/CS-030613.htm?wapkw=(82559+windows+7)
The Intel PRO/100 drivers are included in the Microsoft
Windows 7 installation."
( "aka “In Box”).
AEI
tested the AEI-P430C in a Windows 7 Professional (32-bit) test
system, and the drivers installed “plug & play” without incident.
During the New Hardware Identified routine, the Microsoft
Windows Device Manager installed the “Intel PRO/100 Plus Management”
driver.
First, make sure you have all Windows Updates installed. It is
good practice to use your LOM (connected to the Internet) when using
Windows Update, or adding a new driver. When you install the
P430C, your system’s Device Manager “may” go out and get the driver
via the Internet.
If you are still having a problem, you can install the XP or Vista
32-bit device driver, and it should work fine.
If you have any further issues, please feel free to contact me or
Randy anytime.