Just_AHD Posted April 11 Posted April 11 Hello I am looking for the tcpip.sys patch for XP x64 but i cannot find it anywhere and none of the patchers work since they are only made for XP x86. Does anyone have the patch or is there any way to patch it? As I am getting slow download speeds on a gigabit connection.
j7n Posted April 15 Posted April 15 It shouldn't impact speed. The patch was for quickly opening many connections. I think Server probably doesn't need the patch. Maybe you need to tune the TCP parameters in the registry: send and receive window. Those are probably the same in the 64-bit version. [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\AFD\Parameters] ; Receive window for XP SP2 and SP3 - 256 3ebc0 | 512 7d780 | 1M faf00 "DefaultReceiveWindow"=dword:0003ebc0 "DefaultSendWindow"=dword:00060000 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters] "GlobalMaxTcpWindowSize"=dword:0007d780 "TcpWindowSize"=dword:0003ebc0 "TcpCongestionControl"=dword:00000001 "Tcp1323Opts"=dword:00000001
Just_AHD Posted April 21 Author Posted April 21 On 4/15/2025 at 3:37 PM, j7n said: It shouldn't impact speed. The patch was for quickly opening many connections. I think Server probably doesn't need the patch. Maybe you need to tune the TCP parameters in the registry: send and receive window. Those are probably the same in the 64-bit version. Reveal hidden contents [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\AFD\Parameters] ; Receive window for XP SP2 and SP3 - 256 3ebc0 | 512 7d780 | 1M faf00 "DefaultReceiveWindow"=dword:0003ebc0 "DefaultSendWindow"=dword:00060000 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters] "GlobalMaxTcpWindowSize"=dword:0007d780 "TcpWindowSize"=dword:0003ebc0 "TcpCongestionControl"=dword:00000001 "Tcp1323Opts"=dword:00000001 alright I'll give it a try and see if it does anything, thank you!
j7n Posted Saturday at 10:29 PM Posted Saturday at 10:29 PM That tool will add the same registry entries to do what it promises.
Just_AHD Posted Tuesday at 10:16 PM Author Posted Tuesday at 10:16 PM On 4/15/2025 at 3:37 PM, j7n said: It shouldn't impact speed. The patch was for quickly opening many connections. I think Server probably doesn't need the patch. Maybe you need to tune the TCP parameters in the registry: send and receive window. Those are probably the same in the 64-bit version. Reveal hidden contents [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\AFD\Parameters] ; Receive window for XP SP2 and SP3 - 256 3ebc0 | 512 7d780 | 1M faf00 "DefaultReceiveWindow"=dword:0003ebc0 "DefaultSendWindow"=dword:00060000 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters] "GlobalMaxTcpWindowSize"=dword:0007d780 "TcpWindowSize"=dword:0003ebc0 "TcpCongestionControl"=dword:00000001 "Tcp1323Opts"=dword:00000001 It worked for me thank you very much! It is a huge difference compared to what i was getting before. went from 1 mb/s to around 17,5 mb/s. my connection speed is around 30 mbs. still a huge difference compared to what i had before.
Just_AHD Posted Tuesday at 10:25 PM Author Posted Tuesday at 10:25 PM On 5/9/2025 at 11:56 AM, modnar said: You could also perhaps use speedguide.net 's TCPOptimizer... this worked as well! now i am actually getting my full speed. thanks to both of you for helping me out 1
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