Topic Last Modified: 2007-01-08

The Microsoft® Exchange Server Analyzer Tool reads the following registry entry to determine if the default aging value for Exchange client view database indexes has been overridden:

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\MSExchangeIS\<Server name>\Private-<Private Information Store GUID>\Aging Keep Time

If the Exchange Server Analyzer finds the Aging Keep Time registry entry present and configured, a non-default configuration message is displayed.

Indexes used for views that are created in Exchange database tables by an Exchange client that have not been used for a given time are cleaned up at this time. The following registry entries are used to control index aging:

It is recommended that you not add the Aging Keep Time registry value unless directed to by Microsoft Product Support Services.

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>\Private-<Private Information Store GUID>

  3. Examine and, if desired, change the Aging Keep Time value.

  4. Close the registry editor. If a change is made, restart the Exchange Server computer 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" (