I have an Exchange 2007 server environmentwith three three separate mail stores. After in stalling the most recent Security updates I began receiving a serices of two application errors per mail store. These error messages are appearing constantly (every 7 seconds or so) since the updates were applied. I have listed the error messages below as they appear in my event viewer as critical errors.Any suggestions on how to resolve / clear this error would be appreciated. Application Error #1System - Provider [ Name] MSExchange Search Indexer - EventID 103 [ Qualifiers] 49156 Level 2 Task 1 Keywords 0x80000000000000 - TimeCreated [ SystemTime] 2009-09-03T02:24:57.000Z EventRecordID 80976 Channel Application Computer Exchange Server.com Security - EventData -2147467262 The Microsoft Exchange Search Indexer service failed to initialize due to the following error: (HResult)(-2147467262).Followed by this error messageApplication Error #2 - System - Provider [ Name] MSExchange Search Indexer - EventID 104 [ Qualifiers] 49156 Level 2 Task 1 Keywords 0x80000000000000 - TimeCreated [ SystemTime] 2009-09-03T02:24:57.000Z EventRecordID 80977 Channel Application Computer Exchange server .com Security - EventData MailStore 1\MailStore1Data b86cbb8b-0ca2-42d0-b9ae-72beceeef19b 1 System.ComponentModel.Win32Exception: Could not initialize MS-Search - CoCreateInstance failed with error 0x80004002 at Microsoft.Exchange.Msfte.CFTEAdmin.InitializeIfNecessary() at Microsoft.Exchange.Msfte.CFTEAdmin.DeleteCatalog(CatalogState catalogInfo) at Microsoft.Exchange.Search.Globals.DeleteCatalog(CatalogState state) at Microsoft.Exchange.Search.Globals.RecreateCatalogAndPropertyStore(CatalogState catalogInfo) at Microsoft.Exchange.Search.Globals.CheckAndInitializeCatalog(CatalogState catalogInfo) at Microsoft.Exchange.Search.Driver.MonitorAndUpdateMDBList() 0 Follthanks

Hi, probably rebuilding the index would help here. Please do the following... Stop Index service name "MS Exchange Search". Rebuild the full text indexing using following link. How to Rebuild the Full-Text Index Catalog Start the service. Thanks.Vishal Ramnani | MCITP - Exchange 2007 | MCSE Messaging | MCTS - Win 2008 Config

Also take a look @ below Thread about the same http://social.technet.microsoft.com/Forums/en-US/exchangesvrgeneral/thread/b5c06df7-4f90-48f8-8aa3-fb137ea0b7e8 Please run the EXBPA to make sure rest all configs are in placeVinod |CCNA|MCSE 2003 +Messaging|MCTS|ITIL V3|

Hi, Thank you the very helpful informaion.I performed the tasks detailed in the link you provided.All the errors related to Indexing have cleared.Thanks again for your help.