Posted by: kurtsh | August 2, 2009

INFO: How to change the maximum number of connections in Internet Explorer 8.0

image Ever wondered how to change the maximum number of connections in Internet Explorer 8.0? (a.k.a. “How can I download more than 2 files at the same time over HTTP?”)

I once wrote up this post up that did the same thing for Internet Explorer 7.0, but the instructions for Internet Explorer 8.0 are different.  Here’s the step by step for INCREASING THE MAXIMUM NUMBER OF CONNECTIONS INTERNET EXPLORER 8.0 CAN HANDLE:

  • Start Registry Editor.
  • Locate the following key in the registry:
  • HKEY_LOCAL_MACHINESOFTWAREMicrosoftInternet ExplorerMAINFeatureControlFEATURE_MAXCONNECTIONSPERSERVER
  • On the Edit menu, point to New, click DWORD Value, and then add the following registry values:
  • Value name: iexplore.exe
    Value data: 10
    Base: Decimal
    Note set this value to the connection limit that you want for HTTP 1.1 connections. By setting the value to 10, you increase the connection limit to 10.
  • Locate and then click the following registry subkey:
  • HKEY_LOCAL_MACHINESOFTWAREMicrosoftInternet ExplorerMAINFeatureControlFEATURE_MAXCONNECTIONSPER1_0SERVER
  • On the Edit menu, point to New, click DWORD Value, and then add the following registry values:
  • Value name: iexplore.exe
    Value data: 10
    Base: Decimal
    Note set this value to the connection limit that you want for HTTP 1.1 connections. By setting the value to 10, you increase the connection limit to 10.
  • Exit Registry Editor.

Incidentally, we provide an online “Automatic Fix It” for this modification on the Internet at: http://support.microsoft.com/kb/282402.  This “Fix It” is a download that will automatically apply the above registry changes to your computer for Internet Explorer 8.0.

(FYI:  We do this not to annoy you but to make it more difficult for viruses to propagate through HTTP connections over Internet Explorer.  Most people don’t need more than 2 connections and if a virus is constrained by 2 HTTP sessions, it greatly minimizes the ability of the malware to infect other clients.)


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