Overview

TCP-Z  V2.6

TCP Window

 

1) File version.

2) TCP/IP half-open connection limit value, read from the file tcpip.sys in hard disk.

3) TCP/IP half-open connection limit value, read from the kernel memory.

4) Indicating the tcpip.sys whether or not a original file.
"Yes", meaning that the file has not been modified.

5) Count of system event, which ID equal to 4226.

6) Record of peak. Left-click the icon, it will display the highest values and the time of that event.

7) Change the align of real time counter label.

8) Number of established connections.

9) Number of half-open connections.
Half-open connection, it's incomplete outgoing/outbound TCP connection, in SYN-SENT state.

10) Create depth, create rate depth. This value is read from kernel memory of tcpip.sys.
In fact, Windows control this value not exceeds the memory limit(3).
TCP half-open connection limitation is popular statement.

11) Number of incoming/inbound TCP connections, in SYN-RCVD state.
A program open a port to listening. When a remote client trying to connect to this port, will result in this case.

12) Real time number, peak number. xx/yy, xx is real time value, yy is peak/higest value.
Connection graph and speed graph has the same format.

13) Download speed, in Kilobytes/second.

14) Upload speed, in  Kilobytes/second.

15) Elapsed time of statistics.
It will be reset to 0 when you change the net adapter in (16).

16) Connection name and the network adapter name.

17) Statistics of download data and upload data.
It will be reset to 0 when you change the net adapter in (16).

 

* Windows Server 2003 / 2008 / 7 is unlimited. so that Limit value will grayed out.

 

Statistics Window

 

1) Reset the counter to 0, and start a new statistics.

2) Total number of upload data in this connection/adapter.
Statistics since the system boot up.

3)  Total number of download data in this connection/adapter.
Statistics since the system boot up.

 

* If your are using BT/e-mule, and the incoming connection attempts is 0. It means the listening port has been blocked by firewall, or your are in the LAN without port mapping/forward.

You will missed more remote clients, resulting in lower download speeds.

 

Detail Window

 

1) Command line of the process.

2) Creation time of the process.

3) Physical memory usage of the process, the current working set of the process.

4) Virtual memory usage of the process.

5) I/O Read bytes.
In Task Manager, the number of bytes read in input/output operations generated by a process, including file, network, and device I/Os. I/O Read Bytes directed to CONSOLE (console input object) handles are not counted.

6) I/O Write bytes.
In Task Manager, the number of bytes written in input/output operations generated by a process, including file, network, and device I/Os. I/O Write Bytes directed to CONSOLE (console input object) handles are not counted.

 

 Patch Window

 

1) Modify limit value in kernel memory.

Although you exit the TCP-Z, the modified values will remain in the kernel memory.
The modified values will remain in effect, until shutdown computer.

This is a temporary modification, restart the system will revert to the initial value.
You need to modify the limit value in each boot.

2) Press this button to apply new limit value.

You can using command line to modify the limit value:
tcpz.exe  -limit:200
tcpz.exe  -limit:200  -autoexit

3) Direct modify the limit value in file tcpip.sys.

This function only enabled in the Windows XP.
If you want to patch Vista, please try another tool "Universal Tcpip.sys Patch".

 

* Tcpip.sys of Windows XP have 4 bytes for comparing, the limit can be achieved 0xFFFFFFFF.

* Tcpip.sys of Vista/Windows 7, there are only 1 byte, so the upper limit is 0xFF (255).
 

 

Keyboard Control

Switch Tab

Ctrl + Tab

Switch Control

Tab

Confirm

Space

Capture TCP-Z Window to image file

F5

Capture full screen to image file

F6

 

Command Line

tcpz.exe  -limit:200
tcpz.exe  -limit:200  -autoexit
tcpz.exe  -minimize

If antivirus software block tcp-z loading driver and cause tcp-z fail to startup, you can bypass driver in command line:
tcpz.exe  -nodriver

But, without driver support, it will lost the memory patch feature.

 

 

Setting in tcpz.ini

MaxSpeedGraph=200

Upper value in graph.

NotAdjustSpeedGraph=0

0 - Auto increase the upper of range in graph.
1 - Fixed upper of range in graph.