Patch Windows XP Connection Limit

If you get few working proxy or it takes too long to test the proxies in Elite Proxy Switcher or Socks Proxy Checker, you should use this patch. Moreover after installing the patch you can set the Max Thread from the default 8 to 24 which can boost the testing speed by 3 times.

For Windows 7 and Vista SP2
Microsoft removed the connection limit in Windows 7 and Vista SP2, you do not need this patch any more.

Windows Connection Limit

For Windows XP Users, Microsoft only allows 10 simultaneous connections in order to improve the security, but an immediate downside is the fact that it impacts the multi-thread Internet programs such as Elite Proxy Switcher, Socks Proxy Checker and Forum Proxy Leecher.

Patch to Break the Limit

TCP-Z is windows patch to break the Windows connection limit. Download TCP-Z here:

How to use TCP-Z:
windows patch TCP-Z

Open TCP-Z (tcpz.exe) -> Click the tab Patch -> Patch Memory -> Set the New Value to 100 -> Apply -> Keep TCP-Z running. You need to use TCP-Z every time before testing the proxies.

Patch Effect

Elite Proxy Switcher testing result on unpatched XP:

Proxies to be tested: 6779, Threads: 80, Timeout: 30s
Test item: delay, anonymity
Started testing the proxy list at 12:38:09
Verifying all the proxies in the list…
User stopped testing at 14:08:23 (50 minutes, only 70% finished)
High Anonymous: 142, Anonymous: 4, Transparent: 41

Elite Proxy Switcher testing result on patched XP:

Proxies to be tested: 6779, Threads: 80, Timeout: 30s
Test item: delay, anonymity
Started testing the proxy list at 16:22:56
Verifying all the proxies in the list…
Finished testing the proxies at 16:48:42 (26 minutes)
High Anonymous: 278, Anonymous: 38, Transparent: 198

About Planetlab CoDeeN Proxy

CoDeeN proxy is a service of PlanetLab. PlanetLab is a global research network supported by government and big companies such as Google and Intel.

What is CoDeeN Proxy

CoDeeN is a service deployed on PlanetLab. It’s a content distribution network. But users can use it as a public proxy. Since those proxies are special, we call them codeen proxy. If you see these text when you use a proxy, you are using a CoDeeN proxy.

planet codeen proxy

At the end of the page, you will see:

You will be redirected to the page you have just requested in ten seconds.

Just click that link or wait for 10 seconds to continue to surf the page that you requested. Sometimes you may be required to input some code to identify yourself as a human.

CoDeeN Proxy Limit

CoDeeN proxies have some limits. You cannot login forums, download files or surf https sites. However you can use them to surf most ordinary sites.

You can switch to another proxy if you do not want to use CoDeeN proxies. The fast way to identify a CoDeeN proxy is to remember most 3124/3127 proxies are CoDeeN proxies.

EPS Professional can correctly test whether a proxy is a CoDeeN proxy:

No CoDeeN Proxy Any More

In 2012 or earlier, CoDeeN denied the access from public users. Thus you can not find CoDeeN proxy any more.

HTTP Proxy Server Basics

HTTP proxy server is a software (such as squid, wingate and ccproxy) installed on some network computer server. We usually just call it proxy. The main purpose of proxy is to relay traffic between two computers (client and server). Usually it does some data caching to improve the performance. If your browser is configured to work through the proxy server then all your surfing traffic will go through that proxy server.

The main purposes of proxy servers

  • Transfer speed improvement (in case of caching proxies). You may use your ISP’s proxy to access the internet ?usually you have better connection to your ISP’s proxy than to other hosts, if this proxy has the resource you requested from the internet you will get a copy of it from proxy (from its cache).
  • Security and privacy (for HTTP). Anonymous proxies hide information about your computer in the request headers, so you can safely surf the net and your information will never be used in any way.
  • LAN interconnection (or LAN to WAN connection). Sometimes you experience some problems while accessing the server located in the other network (for example in the internet).

How to setup proxy in your browser

To set up your web browser follow the intructions below. You have to replace <proxy> and <port> with the proxy address and its port. It is preferred to use an IP address instead of proxy’s hostname to avoid the name resolution that your browser will perform in case of hostname usage. Examples:

Microsoft Internet Explorer (IE)

1) Choose the Tools menu.
2) Select Internet Options.
3) Select Connections.
4) Select LAN Settings.
5) Check “Use a proxy server”.
6) Enter <proxy> in the “Address” text box.
7) Enter <port> in the “Port” text box.
8) Press “Apply”.
9) Press “OK”.

Mozilla Firefox

1) Choose the Tools menu.
2) Select Options.
3) Select Advanced->Network->Connection->Settings.
4) Check “Manual Proxy Configuration”.
5) Set the <proxy> and <port> into HTTP proxy option.

Google Chrome uses the same proxy settings of IE. There is no settings for it.

Here a tutorial with pictures to show how to set proxy for your browsers (Internet Explorer, Google Chrome and Mozilla Firefox) step by step.

There are 3 types of HTTP proxy

  • Level 1: High anonymous (elite) proxies. Such proxies don’t change request fields and look like real IP. You real IP is hidden of course. People that administrating internet servers will think that you are not using any proxies.
  • Level 2: Anonymous proxies also don’t show your real IP but change the request fields, so it’s possible to detect that proxy with log analyzing. Nothing really matters, but some server administrators restrict the proxy requests.
  • Level 3: Transparent proxies (not anonymous, simply HTTP) change the request fields, also they transfer real IP. Such proxies are not applicable for security and privacy while surfing on net. You can use them only for network speed improvement.

How to know the level of the proxy

The software Elite Proxy Switcher (EPS) is a professional proxy checker to test the level of a proxy server. It’s also a handy tool to set the proxy for your browsers (IE, Chrome and Firefox). Just double click the proxy server in EPS and it’s done. The free edition should be enough for most users.