Increase Download Speed: More Simultaneous Downloads in IE

Improving Internet Explorer Download Speeds

Have you experienced delays when attempting to download multiple files simultaneously from a single website? Often, the third download will remain pending until one of the preceding downloads completes. This behavior stems from the HTTP 1.1 specification, which typically restricts browsers to a maximum of two concurrent connections.

While a registry modification can increase this limit for Internet Explorer, caution is advised against excessive adjustments. A widespread increase in connection numbers could strain web servers, potentially leading webmasters to implement connection restrictions.

Manual Registry Hack

To implement this change manually, access the Registry Editor (regedit.exe) via the Start menu search or Run dialog. Navigate to the following key:

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

Within the right-hand pane, create two new 32-bit DWORD values:

• MaxConnectionsPerServer - This value controls the connection limit for HTTP 1.1 servers, normally set to 2.
• MaxConnectionsPer1_0Server - This value governs the connection limit for HTTP 1.0 servers, typically configured to 4.

Adjusting these values allows you to modify the number of connections. However, avoid substantial increases, as this can negatively impact browsing speed and potentially result in server blocking due to excessive connection usage. Doubling the default values is generally a safe approach.

Downloadable Registry Hack

A downloadable registry hack offers a more conservative approach, slightly increasing the connection values. This is often the most prudent course of action.

You can further customize the script if desired. To apply the changes, download, extract, and double-click the registry file. This will automatically import the settings into the registry.

An uninstall script is included within the zip file to revert the changes if needed. Download IncreaseIEDownloadLimit Registry Hack

Remember that increasing the number of connections can impact server performance, so moderation is key.