Topic Last Modified: 2005-11-18

The Microsoft® Exchange Server Analyzer Tool reads the following registry entry to determine if the Replication Folder Count Limit key has been modified from the default value:

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\MSExchangeIS\ <servername> \Public -<GUID of Public Store> \Replication Folder Count Limit

If the Exchange Server Analyzer finds Replication Folder Count Limit to be present, a non-default configuration message is displayed.

By default, Replication Folder Count Limit does not exist. The Replication Folder Count Limit value represents the maximum number of folders to pack in a hierarchy replication message (used to replicate the hierarchy of the public folder tree and the properties of public folders). The value must be between 1 and 1000; the default value is 20. This registry key is not valid in Exchange Server 2003 and later versions; it is used only in previous versions of Exchange Server.

This article contains information about editing the registry. Before you edit the registry, make sure you understand how to restore the registry if a problem occurs. For information about how to restore the registry, view the "Restore the Registry" Help topic in Regedit.exe or Regedt32.exe.

To reset the Replication Folder Count Limit registry key

  1. Open a registry editor, such as Regedit.exe or Regedt32.exe.

  2. Navigate to: HKLM\System\CurrentControlSet\Services\MSExchangeIS\<servername>\Public-<GUID of Public Store>

  3. Examine or edit the value for Replication Folder Count Limit.

    The value for this registry entry is in kilobytes (KB). To return to the default value, you should delete Replication Folder Count Limit and restart the Microsoft Exchange Information Store service.

Before you edit the registry, and for information about how to edit the registry, see the Microsoft Knowledge Base article 256986, "Description of the Microsoft Windows Registry" (

For more information about public folder replication, see "Controlling Exchange Server 2003 Public Folder Replication" in Working with the Exchange Server 2003 Store (