Prevent indexing public folders, Enabled.Prevent indexing of certain file types, Enabled.Prevent indexing e-mail attachments, Enabled.Prevent automatically adding shared folders to the index, Enabled.Prevent adding user-specified locations to the All Locations menu, Enabled.Prevent adding UNC locations to index from Control Panel, Enabled.Allow indexing of encrypted files, Disabled.These GPO settings can be updated to turn down the indexing while allowing the Outlook’s instant search feature to function. However, the search buttons in Outlook 2010 still work. We have been successful bringing the SearchIndexer.exe process under control for RDS use, although we had to disable almost all of the indexing via GPO. The Windows Search Pre-Installation Considerations article from Microsoft TechNet mentions that it is supported for Terminal Services, but performance may be affected. On RDS servers we need the Windows Search Service, which is part of the File Services role in Windows Server 2008 R2 or a Feature in Windows Server 2012. As a result, the SearchIndexer.exe process on an RDS server may cause high CPU and I/O usage as more users log onto the server.
With Outlook 2010/2013 there is more integration available with the Search application. Microsoft Outlook search functionality relies on the Search service for the Instant Search feature.
