Increase the Maximum Number of HTTP Sessions Allowed

Posted On 2007-05-03 by FortyPoundHead
Tags: Software Hack/Tweak Windows
Views: 2230

To abide by the HTTP specifications Windows limits the number of simultaneous connections that it will make to a single HTTP (web) server. This affects all Windows Intenet applications that use the standard API, including Internet Explorer. The behaviour can be seen when downloading multiple files from a web site only a certain number (2 or 4) will be active at any one time.

Windows will limit connections to a single HTTP 1.0 server to four simultaneous connections. Connections to a single HTTP 1.1 server will be limited to two simultaneous connections. The HTTP 1.1 specification (RFC2068) mandates the two connection limit while the four connection limit for HTTP 1.0 is a self-imposed restriction which coincides with the standard used by a number of popular Web browsers.

Open your registry and find the key below.

Create two new values, or modify the existing values, called 'MaxConnectionsPerServer' and 'MaxConnectionsPer1_0Server'. Change the values to equal the number of simultaneous requests allowed to a single HTTP server, the default values are 2 and 4 respectively.

Exit your registry and restart Windows.

NOTE: By changing these settings you are causing Windows to break the HTTP protocol specification for any Internet applications running on your machine.

Key: [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
Data Type: REG_DWORD
Data: Number of Simultaneous Connections

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