It is necessary to know that Windows, as it has evolved, has a limit imposed on simultaneous connections coming out from a computer to the outside.
To be exact, the connection limit is set to 10, so with Windows it is not possible to download from more than 10 sources at the same time and the eleventh source is queued.
Testimony of this fact is the presence of event 4226 on the "Event Viewer" visible from Start-> Run-> eventvwr.msc, in the "System" section.
Looking for the event number 4226 (to find it easily just sort by the Event column), you can see the screen of the figure and its practical effect is that the web pages are loaded slowly or even they cannot or cannot load (sometimes with Emule or Torrent on, internet browsing seems to be interrupted and it is impossible to view any page).
This limit was imposed by Windows XP SP 2 and SP 3 and on Windows Vista SP1 and SP2, for security reasons due to the ability to spread viruses, from infected computers, which managed to spread without limits.
The limit of 10 connections has resulted in slower Internet browsing, file downloads and, above all, major problems in sharing files on P2P networks and for downloading from programs such as Emule or Bit-Torrent that need to open many connections repeatedly and simultaneously.
Obviously, therefore, this limit was immediately eliminated by Windows XP with the very famous EvID 4226 Patch by LvlLord which increases the TCP / IP connections from 10 to 50 or 100 and which was discussed in a previous article still very valid and updated.
This patch has already been tested for some time and there is no danger in its use, it still makes a backup of the original tcpip.sys file.
After launching the EvID4226Patch.exe file, a DOS window appears with several messages:
- "Do you really want to change the limit to 50? (Y = Yes / N = No / C = Change limit / U = Uninstall)" press Y if you want 50, press C and then 100 if you want 100 (value recommended for Emule)
To the other messages always answer Yes and, if the Microsoft alert about the restoration of the original files appears through the Windows CD, choose " cancel ", and then Yes.
If you want to restore the original file with the value 10, you can relaunch the EvID4226Patch itself.
Obviously it is not a virus if the antivirus should also report it, you must disable it until the patch is applied.
For Windows Vista, the TCP IP Limit AutoPatch applies.
These patches are still effective and functional today but have two shortcomings:
1) Must be applied every time after a new Microsoft update.
2) They leave the PC exposed to the security problems that Microsoft wanted to eliminate with the limit of 10.
A little program developed by a Chinese called Deepxv that can be considered the evolution of all the patches for the 4226 event on the internet.
The program is called " TCP-Z - TCP Half Open Limited Patcher & Monitor " and can be downloaded for free from Softpedia for Windows 7, Vista and XP.
This portable software that does not require installation and that increases the TCP connection limit every time you launch it, to then return it to the default value of 10 when it is not running and you restart your computer.
The advantages of TCP-Z, without a doubt, are 3:
1) Safe and simple because it modifies the tcpip.sys file in memory without therefore touching the original file
2) The patch is applied immediately without the need to restart the computer.
3) It is not affected in the least by Microsoft Windows Update updates.
Therefore, the same TCP-Z program can be used, both for all future updated versions of the tcpip.sys file, and for all versions of Windows, XP, Vista and even Windows 7.
The program is also decently graphically edited with a clear interface that shows the number of current connections and the upload and download speeds in real time.
It also gives immediate evidence of the number of 4226 events (those we had seen before), thus indicating if and when the half-open TCP protocol is overloaded.
TCP-Z is used very simply by manually starting the file tcpz.exe (for 32 bit OS) or tcpz64.exe (for 64bit OS), go to the "Patch" tab and, on the part above where "Patch Memory" is written, set the "New Value" at 50 or 100 by moving the lever up.
If you want a patch equal to that of the good LvLlord then do the patch below where "Patch File TCPIP.sys" is written and the change of limit will be permanent at least until the next update (on Vista this is not recommended).
If you have applied the patch in memory, when you restart Windows the connection limit will return to 10 as it is by default.
Alternatively, you can apply the patch to open TCP connections and increase them automatically, going to the VirtuaDevice folder and installing TCP-Z you will notice, in the "Device Manager" window, a new driver called TCP Half Open Limited Patcher ; by clicking on it, in the properties tab you can change the value of the connection limit.
Another program allows you to balance the network bandwidth in order to download data with programs that exploit peer-to-peer faster and use other programs at the same time without thinking about surfing the Internet.
For security and protection on the p2p network I recommend reading "Security on the p2p network and protecting privacy while downloading in Peer-to-Peer".
To be exact, the connection limit is set to 10, so with Windows it is not possible to download from more than 10 sources at the same time and the eleventh source is queued.
Testimony of this fact is the presence of event 4226 on the "Event Viewer" visible from Start-> Run-> eventvwr.msc, in the "System" section.
Looking for the event number 4226 (to find it easily just sort by the Event column), you can see the screen of the figure and its practical effect is that the web pages are loaded slowly or even they cannot or cannot load (sometimes with Emule or Torrent on, internet browsing seems to be interrupted and it is impossible to view any page). This limit was imposed by Windows XP SP 2 and SP 3 and on Windows Vista SP1 and SP2, for security reasons due to the ability to spread viruses, from infected computers, which managed to spread without limits.
The limit of 10 connections has resulted in slower Internet browsing, file downloads and, above all, major problems in sharing files on P2P networks and for downloading from programs such as Emule or Bit-Torrent that need to open many connections repeatedly and simultaneously.
Obviously, therefore, this limit was immediately eliminated by Windows XP with the very famous EvID 4226 Patch by LvlLord which increases the TCP / IP connections from 10 to 50 or 100 and which was discussed in a previous article still very valid and updated.
This patch has already been tested for some time and there is no danger in its use, it still makes a backup of the original tcpip.sys file.
After launching the EvID4226Patch.exe file, a DOS window appears with several messages:
- "Do you really want to change the limit to 50? (Y = Yes / N = No / C = Change limit / U = Uninstall)" press Y if you want 50, press C and then 100 if you want 100 (value recommended for Emule)
To the other messages always answer Yes and, if the Microsoft alert about the restoration of the original files appears through the Windows CD, choose " cancel ", and then Yes.
If you want to restore the original file with the value 10, you can relaunch the EvID4226Patch itself.
Obviously it is not a virus if the antivirus should also report it, you must disable it until the patch is applied.
For Windows Vista, the TCP IP Limit AutoPatch applies.
These patches are still effective and functional today but have two shortcomings:
1) Must be applied every time after a new Microsoft update.
2) They leave the PC exposed to the security problems that Microsoft wanted to eliminate with the limit of 10.
A little program developed by a Chinese called Deepxv that can be considered the evolution of all the patches for the 4226 event on the internet.
The program is called " TCP-Z - TCP Half Open Limited Patcher & Monitor " and can be downloaded for free from Softpedia for Windows 7, Vista and XP.
This portable software that does not require installation and that increases the TCP connection limit every time you launch it, to then return it to the default value of 10 when it is not running and you restart your computer.
The advantages of TCP-Z, without a doubt, are 3:
1) Safe and simple because it modifies the tcpip.sys file in memory without therefore touching the original file
2) The patch is applied immediately without the need to restart the computer.
3) It is not affected in the least by Microsoft Windows Update updates.
Therefore, the same TCP-Z program can be used, both for all future updated versions of the tcpip.sys file, and for all versions of Windows, XP, Vista and even Windows 7.
The program is also decently graphically edited with a clear interface that shows the number of current connections and the upload and download speeds in real time.
It also gives immediate evidence of the number of 4226 events (those we had seen before), thus indicating if and when the half-open TCP protocol is overloaded.
TCP-Z is used very simply by manually starting the file tcpz.exe (for 32 bit OS) or tcpz64.exe (for 64bit OS), go to the "Patch" tab and, on the part above where "Patch Memory" is written, set the "New Value" at 50 or 100 by moving the lever up.
If you want a patch equal to that of the good LvLlord then do the patch below where "Patch File TCPIP.sys" is written and the change of limit will be permanent at least until the next update (on Vista this is not recommended).
If you have applied the patch in memory, when you restart Windows the connection limit will return to 10 as it is by default.
Alternatively, you can apply the patch to open TCP connections and increase them automatically, going to the VirtuaDevice folder and installing TCP-Z you will notice, in the "Device Manager" window, a new driver called TCP Half Open Limited Patcher ; by clicking on it, in the properties tab you can change the value of the connection limit.
Another program allows you to balance the network bandwidth in order to download data with programs that exploit peer-to-peer faster and use other programs at the same time without thinking about surfing the Internet.
For security and protection on the p2p network I recommend reading "Security on the p2p network and protecting privacy while downloading in Peer-to-Peer".
