TCP/IP Memory Patcher- Increases P2P Download Speeds

AndyP



Joined: 18/04/2008
Posts: 517

Message Posted:
04/03/2009 08:46

The introduction of SP2 was the start of microsoft limiting connections by default over the internet affecting p2p downloading speeds quite dramatically, this has continued throughout all the subsequent versions of windows

TCP-Z (Half Open TCP/IP Memory Patcher for x86 and x64 Windows 7, Vista and XP)

TCP-Z is a very useful memory manipulation utility that patches and changes TCP/IP simultaneous concurrent half-open incomplete outbound/outgoing connection attempt limits in Windows operating systems dynamically. Unlike most TCP/IP half-open limit patchers available on the Internet, TCP-Z does not actually modify and patch the actual tcpip.sys system file. Instead, TCP-Z directly access the kernel memory to set the new value as number of half open connection limit allowed. TCP-Z has some similarity to CrackTcpip.sys (now renamed UnlimitedTcpip.sys) which uses a memory resident driver to modify the connection limit.

AndyP



Joined: 18/04/2008
Posts: 517

Message Posted:
04/03/2009 08:48

Download here:

http://www.systemlogix.co.uk/downloads/VirtualDevice.zip



I have installed and P2P downloads a lot faster.





Systemlogix cannot be held responsible for any installation errors.

Navek



Joined: 01/06/2008
Posts: 2656

Message Posted:
04/03/2009 08:57

Hi AndyP,

Are you then recommending this download as a way to speed up P2P downloads, if so do we open or save.

Thanks'

Navek

Ossie


Joined: 19/01/2008
Posts: 311

Message Posted:
04/03/2009 09:37

What on earth are you talking about?

AndyP



Joined: 18/04/2008
Posts: 517

Message Posted:
04/03/2009 12:57

Download the file (it's a Zip file), save tp PC.

Open the zip file and double click on the file called TCPZ_Setup-x86.exe



Yes, it definately speeds up P2P downloads (well it did on mine).



For those that do not know what we are talking about.

P2P = Peer to Peer file sharing ie: Torrents

If you use a piece of software like BitTorrent, you can then search sites like Piratebay for films, music & software. With BitTorrent you can then download anything thats available. This has been covered in more detail in teh Cyprus Today newspaper over the past couple of weeks.



This download will help speed up the Torrent downloads.

coffer


Joined: 13/02/2007
Posts: 292

Message Posted:
04/03/2009 18:13

Can't get this device to work, followed instructions but get "no information on this device" when I try to load .inf file. Strange don't normally have this problem and I am the administrator on the system. Anyway thanks for your post, but I've wasted enough time!

ROBnJO


Joined: 30/06/2008
Posts: 1289

Message Posted:
04/03/2009 18:38

AndyP is from the IT tribe.



A tribe who speak in tongues unknown to the human race in general.



They are a secretive and inclusive tribe who only part with their Godly knowledge to us lower species when begged for resolutions to our problems.



They will then only impart their knowledge spareingly over a number of confusing 'releases', some known as 'Beta', which means certain death!



If they accept you, they will offer you enlightenment in return for personal favours,... also known as 'Mates Rates'!



They are frequently single and antisocial creatures who dwell in dark basements, living off coffee and KFC, with an innate fear of daylight.





Treat with Caution!



Rob.



A former victim!

Turtle


Joined: 28/05/2007
Posts: 2669

Message Posted:
04/03/2009 21:30

Nope ......tried my best but don't understand a word

erolz


Joined: 17/11/2008
Posts: 3456

Message Posted:
04/03/2009 23:18

I'll do my best to explain.



TCP/IP is the 'protocal' used for communicating over the internet. It is in simple terms a set of rules as to how one machine talks to another.



Part of the process of one machine talking to another is the first machine requesting a connection to the other.



A half open connetion request is one where your machine has sent a request for a connection but the machine it was sent to has yet to reply.



Starting with windows XP service pack 1 Microsoft introduced a limit to the number of connection requests that could be made per second by windows machines. It did this principlay to reduce the impact of machines being used in denial of service attacks (DOS). A denial of service attack is when a machine or group of machines all send as many requests as possible to a single target machine in the hope of overloading that target machine and thus denying serice from it to others. Limiting the amount of requests a single machine can make per second (cont)

erolz


Joined: 17/11/2008
Posts: 3456

Message Posted:
04/03/2009 23:27

therefore has the effect of limiting how mcuh a given machine can 'block' a target of a DOS attack.



How does this limit to how many non completed requests per second you machine can make of others affect you ? In most cases it does not affect you at all. When web browsing for example your machine makes a connection request to the relevant server machine and the server answers all well before this limit is reached - remeber the limit is only on requests sent that have not had an answer and its per second. Same with email, you request connection to your server, server answers and the half open connection per second limit is never reached.



The main application type where this limit may affect you is with Peer 2 Peer programs. Peer 2 peer systems are typicaly systems that enable the transfer of files in a massively distributed manner, where little chuncks of the file are downloaded from many different machines all spread over the internet



(cont)

erolz


Joined: 17/11/2008
Posts: 3456

Message Posted:
04/03/2009 23:34

When you start a peer 2 peer download typicaly what your peer 2 peer program first does is start sending out many request to many different machines to establish which machines have the particular file you want. It is in this 'start up' process that the limit on unaswered request per second can affect you. It does NOT affect how many answered simultaneaous connections you can have, nor does it affect the speed of any of these open connections in any way. The only thing it affects is how many requests , that have not been answered, can be sent in a given second. So if for example on starting your P2P program it tries to make connections to 300 machines to see if they have the file you want and the first 10 connections attempts do not reply, then it will 'que up' the remaing 290 until either some of the 10 do reply or a second passes , whereby it will then send the next 10 and os on and so on.



(cont)

erolz


Joined: 17/11/2008
Posts: 3456

Message Posted:
04/03/2009 23:44

In summary.



The limit that the progam/patch AndyP posted in the first message affects on windows machines is a limit on the number of request for connection (to another machine) that have not been answered that your machine can make in a second. It is not a limit on how many simultaneous (answered) connections you can have, nor is it a limit on the speed of any given connection. It can affect how quickly a P2P program can find other machines from which you can download a given file, but not the speed of that download itself once those machines have been found.



My personal view, with all due respect to AndyP, would be to not mess with the windows limit using software like that posted in the first post. The gains are minimal. You might shave off a minute or 2 the 'start up' phase of a P2P download but if the download is any size like a move then its gonna take hours to download anyway. For me the risk of possibly damaging your system is not wortg the gain



(cont)

erolz


Joined: 17/11/2008
Posts: 3456

Message Posted:
04/03/2009 23:49

Having said that if you feel you must increase the number of unaswered requests for connection that you machine can make per second, then the software / patch program that Andy has posted is probably the best or one of the best at doing this.



Hope this makes some kind of sense to those who are not members of the IT Tribe.

Turtle


Joined: 28/05/2007
Posts: 2669

Message Posted:
04/03/2009 23:51

erolz, fully understand now no problem !!

petez


Joined: 04/12/2008
Posts: 560

Message Posted:
04/03/2009 23:58

Remember kids - file sharing copyrighted films, music, documents, software or images is illegal in North Cyprus and carries the death penalty..!!

petez


Joined: 04/12/2008
Posts: 560

Message Posted:
05/03/2009 00:01

Only Joking,

but if i had a pc i would be very wary what i downloaded, one wrong move and you're computer becomes under the control of an evil genius who plans to use toasters to take over the world...

Navek



Joined: 01/06/2008
Posts: 2656

Message Posted:
05/03/2009 00:38

Hi AndyP

Downloaded and installed,

Msg 5 explained it fully.

Any other wee tricks?

Will test ASAP

Thanks

Navek

MimoMar


Joined: 26/01/2009
Posts: 150

Message Posted:
05/03/2009 10:28

PICNIC errors?





Don't learn it, just Google-it.......

MimoMar


Joined: 26/01/2009
Posts: 150

Message Posted:
05/03/2009 10:30

(Problem In Chair Not In Computer)