Realtek RTL Gigabit and Fast Ethernet

Publisher's description of Realtek RTL Gigabit and Fast Ethernet NIC Driver (Windows 2000/XP/XP 64-bit)
From Realtek Semiconductor:

Drivers for RTL8100B(L)/RTL8100C(L)/RTL8101L/RTL8139C(L), RTL8139C(L)+/RTL8139D(L)/RTL8100(L), RTL8130/RTL8139B(L)series. Windows Logo Certification Drivers for OEM manufacturer.