Crack Windows Vista restrictions on concurrent connections

Many friends have sent E-mail to us after improving the multi-threaded download speed in Vista. Why do I disable the "Auto Tuning" in Windows Vista and the BT download speed is still very slow, and the performance is not significantly improved. In fact, to understand this problem objectively, Auto Tuning is only one of the possible factors influencing the multi-threaded download performance of BT, eMule, etc. In addition, there are many other factors at work, among them, Windows. The role of the system's restrictions on concurrent connections is even more important. Therefore, in order to really improve the download speed of BT and other software, you must also crack the limitations of Windows Vista on concurrent connections.

We all know that in order to prevent the spread and attack of worms, Microsoft has set a limit on the maximum number of concurrent threads to be exported in Windows XP SP2 (no more than 10 concurrent connections/sec), and the system monitors concurrently in real time. The number of threads, once it finds that a process has more than 10 threads, it triggers a 4226 error and automatically masks out some threads. This is fatal for most P2P applications that require a large number of connection processes to guarantee performance, including BT. (BitTorrent), BitComet, eMule and many P2PTV software such as PPLive, PPStream, etc. In order to ensure the speed and performance of these software applications, you must first crack the restrictions on Tcpip.sys and must connect, I believe many friends are no stranger to this. (Note: For Windows XP sp2, please refer to the introduction of XP SP2 restrictions on concurrent threads)

In Windows Vista, tcpip.sys also has similar restrictions on outgoing concurrent connection threads, and Different versions of Windows XP SP2 use no more than 10 concurrent threads per second. Windows Vista differs depending on the version. For example, Windows Vista Ultimate allows no more than 25 concurrent connections per second, while Windows Vista Home Basic only allows 2 concurrent connections /sec - it is estimated that this is the main reason why many friends reflect the unbearable BT download speed in Windows Vista. After all, Windows Vista preinstalled with PC is mostly Home Basic.

To crack the limitations of Windows Vista on concurrent connections, the idea is basically similar to that of Windows XP sp2, which uses the modified tcpip.sys to replace the existing files with the same name in the system, thus bypassing Windows Vista. Monitoring of the connection process. The specific modification steps are slightly more complicated than Windows XP SP2. We will introduce them in detail below.

Modify Tcpip.sys to crack Windows Vista restrictions on concurrent connections

tcpip.sys (Windows Vista X86)

tcpip.sys (Windows Vista X64)

The download file is in rar format. After downloading, extract the corresponding version of tcpip.sys.

2. To replace the system file, you must first obtain the ownership and control of the file, open the command line window as an administrator, run the following command:

takeown /fc:\\windows\\ System32\\drivers\\tcpip.sys

cacls c:\\windows\\system32\\drivers\\tcpip.sys /G HighDiy:F

"/G HighDiy:F" in the cacls command means Give the user "HighDiy" full control over the file, and the actual use should be modified according to their own username.

3. Disable the Auto-Tuning function of TCP/IP. As described in Improving the multi-thread download speed in Vista, type in the command line:

netsh int tcp set global autotuninglevel= Disable

4. For 64-bit Windows Vista (x64), you must disable Windows Vista's system integrity check before replacing files. Otherwise, the modified Tcpip.sys will be automatically modified after the system is restarted. The original file is overwritten again. To do this, type in the command line:

bcdedit.exe -set loadoptions DDISABLE_INTEGRITY_CHECKS

5. After completing the above operation, you can use the downloaded tcpip.sys to overwrite Windows Vista. The original file is copied directly to "C:\\windows\\system32\\drivers".

Note: If the copy fails, you can restart the system and enter safe mode to try again.

6. Finally, modify the registry settings to maximize the number of concurrent connections, open the Registry Editor, find the following registry branch:

HKEY_LOCALL_MACHINE\\ SYSTEM\\ CurrentControlSet\\ Services\\ Tcpip\\ Parameters< Br>

Create a new DWORD button named "TcpNumConnections" and enter the value you want.

In theory, the value entered here can be any number. However, setting this value too large does not have much practical significance. After all, the overall bandwidth of the network and the performance of the PC itself are limited. In general, setting 150 - 500 is enough.

7. Users who are unfamiliar with the registry operation can also directly download the registry file we provide. Note that the number of concurrent links set in this file is 4096, depending on your network and application requirements. Change to the appropriate number:

Download: Maximum number of concurrent connections to the registry modification

8. Restart Windows Vista.

So, the completion of the Windows Vista concurrent connection restrictions crack, try your BT, is it faster?