Enable More Simultaneous Downloads in Internet Explorer 9

If you use Internet Explorer and you have trouble downloading more than 2 files from one website, this registry edit might solve your problem.

To do this, open the Registry Editor by entering “regedit” (without the quotes) in the Search box on the Start menu. When regedit.exe displays in the results, click on it or press Enter when it’s highlighted.


If the User Account Control dialog box displays, click Yes to continue.

NOTE: You may not see this dialog box, depending on your User Account Control settings. See our post, Windows 7 – How to configure UAC (User Account Control), for more information.


Navigate to the following key in the tree on the left.

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings

Right-click on the Internet Settings key and select New | DWORD (32-bit) Value from the popup menu.


Name the new value MaxConnectionsPerServer and then double-click on it.

NOTE: This key sets the limit for HTTP 1.1 servers, which is normally supposed to be 2.


On the Edit DWORD (32-bit) Value dialog box, enter 4 in the Value data edit box, select Decimal as the Base and click OK.


Create another new DWORD (32-bit) Value under the Internet Settings key and name it MaxConnectionsPer1_0Server. Double-click on the new key and change its value to 8.

NOTE: This key sets the limit for HTTP 1.0 servers, which is normally supposed to be 4.


Close the Registry Editor by selecting Exit from the File menu.


You can set these two keys to higher numbers if you want, but if you set the numbers too high, you may find that your browsing becomes much slower than usual, and you might even get blocked from some servers for using too many connections. It’s usually safe to double the default values.

To revert to the default values, simply delete the two keys you added to the registry.

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