MaxClientRequestBuffer is set to a non-default value

[This topic is intended to address a specific issue called out by the Exchange Server Analyzer Tool. You should apply it only to systems that have had the Exchange Server Analyzer Tool run against them and are experiencing that specific issue. The Exchange Server Analyzer Tool, available as a free download, remotely collects configuration data from each server in the topology and automatically analyzes the data. The resulting report details important configuration issues, potential problems, and nondefault product settings. By following these recommendations, you can achieve better performance, scalability, reliability, and uptime. For more information about the tool or to download the latest versions, see "Microsoft Exchange Analyzers" at]  

Topic Last Modified: 2005-11-18

The Microsoft® Exchange Server Analyzer Tool reads the following registry key to determine whether the key is present:

HKEY_LOCAL_MACHINE System\CurrentControlSet\w3svc\Parameters\MaxClientRequestBuffer

If the Exchange Server Analyzer finds that the MaxClientRequestBuffer key has been set, the Exchange Server Analyzer displays a non-default message.

By default, this registry value does not exist.

The Exchange Server Analyzer reports this configuration for informational purposes only. No action is required.

For more information about the MaxClientRequestBuffer registry key, see Microsoft Knowledge Base article 260694, "Description of the MaxClientRequestBuffer Registry Value" (