Universal Tcpip.sys Patch is the sibling to TCP-Z Network Monitor, developed by the same Chinese hacker, deepxw. Unlike TCP-Z which patches the half-open outbound TCP connections limit in the kernel memory (thus requiring re-patch on every system reboot), Universal Tcpip.sys Patch directly patch the physical original tcpip.sys on the local drive in order to increase the value of half-open (incomplete outbound) TCP connections limit.

Although any patch for tcpip.sys to remove or increase incomplete half-open outgoing TCP connections limit is no longer required now, as the half-open TCP connections is unlimited and not restricted by default in Windows Vista and Windows Server 2008 SP2, and Windows 7, some users who still on Windows Vista SP1 or RTM, or Windows XP may still need a patched tcpip.sys in order to bypass and circumvent limitation of outgoing half-open TCP connections to achieve full download and upload speed.

The main feature of Universal Tcpip.sys Patch is that user no longer required to press F8 on every system startup to select option to disable forced driver signing or use ReadyDriver Plus to simulate the process. Instead, Universal Tcpip.sys Patch will automatically digitally sign the modified tcpip.sys with a test certificate, and then turn on testsigning mode, which is popularly used as a workaround to load unsigned drivers. It will also remove “Test Mode” watermark on desktop.

Universal Tcpip.sys Patch (UTP) supports almost all versions of Windows operating system, including Windows XP, Windows Server 2003, Windows Server 2008, Windows Vista, Windows 7 on any service pack level, and inclusive both 32-bit (x86) and 64-bit (x64) systems. Note that patching Windows Server OS makes no sense and no actual effect, because the limit does not active or applied in the Windows Server in the first place.

Universal Tcpip.sys Patch

Download Universal Tcpip.sys Patch

Current Version: 2009.04.09 V1.2.0.12
Download Link 1: UniversalTcpipPatch_20090409.zip
Download Link 2: UniversalTcpipPatch_20090409.zip

As shown in the screenshot above, Universal Tcpip.sys Patch displays plenty of information to ensure that users know if the tcpip.sys file has been patched properly or not. One crucial information is checksum value on tcpip.sys file, where the last number of the checksum hash has the following interpretation:

1 – Original file, without any modification.
3 – The file has been modified, but with a test certificate.
9 – The file has been modified, but digital signature is not repaired or signed again, or damanged.