It is tough to find XP x64 drivers . Please Post it here which you found .
I found many drivers for the following Intel Network Cards: https://downloadcenter.intel.com/downloa…e?product=59787
Intel® 10 Gigabit AT Server Adapter
Intel® 10 Gigabit SR Dual Port ExpressModule
Intel® 82540EM Gigabit Ethernet Controller
Intel® 82540EP Gigabit Ethernet Controller
Intel® 82541ER Gigabit Ethernet Controller
Intel® 82541GI Gigabit Ethernet Controller
Intel® 82541PI Gigabit Ethernet Controller
Intel® 82543GC Gigabit Ethernet Controller
Intel® 82544EI Gigabit Ethernet Controller
Intel® 82544GC Gigabit Ethernet Controller
Intel® 82545EM Gigabit Ethernet Controller
Intel® 82545GM Gigabit Ethernet Controller
Intel® 82546EB Gigabit Ethernet Controller
Intel® 82546GB Gigabit Ethernet Controller
Intel® 82547GI Gigabit Ethernet Controller
Intel® 82552V Fast Ethernet PHY
Intel® 82558 32-bit PCI Bus LAN Controller
Intel® 82559ER Fast Ethernet Controller
Intel® 82562 Fast Ethernet Controller
Intel® 82562ET Fast Ethernet Controller
Intel® 82562EX Fast Ethernet Controller
Intel® 82562EZ Fast Ethernet Controller
Intel® 82563EB Gigabit Ethernet PHY
Intel® 82564EB Gigabit Ethernet PHY
Intel® 82566DC Gigabit Ethernet PHY
Intel® 82566DM Gigabit Ethernet PHY
Intel® 82566MC Gigabit Ethernet PHY
Intel® 82566MM Gigabit Ethernet PHY
Intel® 82567 Gigabit Ethernet Controller
Intel® 82571EB Gigabit Ethernet Controller
Intel® 82572EI Gigabit Ethernet Controller
Intel® 82573E Gigabit Ethernet Controller
Intel® 82573L Gigabit Ethernet Controller
Intel® 82573V Gigabit Ethernet Controller
Intel® 82574IT Gigabit Ethernet Controller
Intel® 82574L Gigabit Ethernet Controller
Intel® 82575EB Gigabit Ethernet Controller
Intel® 82576EB Gigabit Ethernet Controller
Intel® 82576NS Gigabit Ethernet Controller
Intel® 82577LC Gigabit Ethernet PHY
Intel® 82577LM Gigabit Ethernet PHY
Intel® 82578DC Gigabit Ethernet PHY
Intel® 82578DM Gigabit Ethernet PHY
Intel® 82579LM Gigabit Ethernet PHY
Intel® 82579V Gigabit Ethernet PHY
Intel® 82580EB Gigabit Ethernet Controller
Intel® 82583V Gigabit Ethernet Controller
Intel® 82598EB 10 Gigabit Ethernet Controller
Intel® 82599EB 10 Gigabit Ethernet Controller
Intel® 82599EN 10 Gigabit Ethernet Controller
Intel® 82599ES 10 Gigabit Ethernet Controller
Intel® Ethernet Controller I350-AM2
Intel® Ethernet Controller I350-AM4
Intel® Ethernet Controller I350-BT2
Intel® Ethernet Controller X540-AT2
Intel® Ethernet Converged Network Adapter X520-DA1
Intel® Ethernet Converged Network Adapter X520-DA2
Intel® Ethernet Converged Network Adapter X520-LR1
Intel® Ethernet Converged Network Adapter X520-QDA1
Intel® Ethernet Converged Network Adapter X520-SR1
Intel® Ethernet Converged Network Adapter X520-SR2
Intel® Ethernet Converged Network Adapter X520-T2
Intel® Ethernet Converged Network Adapter X540-T1
Intel® Ethernet Converged Network Adapter X540-T2
Intel® Ethernet Server Adapter I340-F4
Intel® Ethernet Server Adapter I340-T4
Intel® Ethernet Server Adapter I350-F2
Intel® Ethernet Server Adapter I350-F4
Intel® Ethernet Server Adapter I350-T2
Intel® Gigabit CT Desktop Adapter
Intel® Gigabit EF Dual Port Server Adapter
Intel® Gigabit ET Dual Port Server Adapter
Intel® Gigabit ET2 Quad Port Server Adapter
Intel® PRO/100 M Desktop Adapter
Intel® PRO/100 S Desktop Adapter
Intel® PRO/100 S Dual Port Server Adapter
Intel® PRO/100 S Management Adapter
Intel® PRO/100 S Server Adapter
Intel® PRO/100 VE Desktop Adapter
Intel® PRO/100 VE Network Connection
Intel® PRO/100 VM Network Connection
Intel® PRO/100+ Adapter
Intel® PRO/100+ Management Adapter
Intel® PRO/100+ Server Adapter
Intel® PRO/1000 CT Network Connection
Intel® PRO/1000 GT Desktop Adapter
Intel® PRO/1000 MF Dual Port Server Adapter
Intel® PRO/1000 MF Server Adapter
Intel® PRO/1000 MF Server Adapter (LX)
Intel® PRO/1000 MT Desktop Adapter
Intel® PRO/1000 MT Dual Port Server Adapter
Intel® PRO/1000 MT Quad Port Server Adapter
Intel® PRO/1000 PF Dual Port Server Adapter
Intel® PRO/1000 PM Network Connection
Intel® PRO/1000 PT Desktop Adapter
Intel® PRO/1000 PT Dual Port Server Adapter
Intel® PRO/1000 PT Quad Port Low Profile Server Adapter
Intel® PRO/1000 PT Quad Port Server Adapter
Intel® PRO/1000 XF Server Adapter
Intel® PRO/1000 XT Low Profile Server Adapter
Intel® PRO/1000 XT Server Adapter
Intel® PRO/100B Adapter
Sun Dual 10GbE PCIe 2.0 FEM*