Topic Last Modified: 2005-11-18

The Microsoft® Exchange Server Analyzer Tool reads the following registry entry to determine whether Exchange has been configured to generate status request messages for the public folder hierarchy:

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\MSExchangeIS\<Server name>\Public-<Public Information Store GUID>\Enable Replication Messages At Startup

If the Exchange Server Analyzer finds the Enable Replication Messages At Startup registry entry present and configured, a non-default configuration message is displayed.

In Exchange Server 5.5, each computer that has a public folder store sends a nightly status request message to determine the state of the public folder hierarchy. Exchange 2000 Server and Exchange Server 2003 do not do this. Typically, in Exchange 2000 Server and Exchange Server 2003, the status request message is only sent out once during the lifetime of the public folder store; it is sent when the store is created.

However, in certain circumstances you may have to generate a status request message. For example, if the public folder hierarchy on the Exchange 2000 Server or Exchange Server 2003 computer does not seem to replicate, or the public folder hierarchy replicates very slowly, the generation of a status request message may permit the public folder hierarchy replication to continue. Issues with public folder hierarchy replication may occur if the original status request message that was sent when the public folder store was created was dropped and never acknowledged, or if the message was sent to a server with a significantly incomplete hierarchy.

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 view or modify the Aging Keep Time registry value

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

  2. Navigate to: HKLM\System\CurrentControlSet\Services\MSExchangeIS\<Server name>\Public-<Public Information Store GUID>

  3. Examine, or if desired, change the Enable Replication Messages At Startup value. This REG_DWORD value must be set to 1 to take effect. If you set the value to 0 (the default setting), no status request message is sent when the public information store starts.

  4. If a change is made, close the registry editor, and then dismount and remount the public information store for the change to take effect.

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 status messages and the Enable Replication Messages At Startup registry value, see the following Knowledge Base articles: