Found the info below when googling your issue... Obviously, you have deleted something that shouldn't have. A restore of the data would probably be your quickest fix - or you can try the suggestion below: It probably all stems from the problems with ntds.nit. I take it you cannot restore that file from a backup? Well, if not, there are a few things you can try listed in this Microsoft Article - most refer to repairing a problem with Active Directory: http://support.microsoft.com/kb/258062 Regards, Chris -----Original Message----- From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Anthony Paillard Sent: Tuesday, September 12, 2006 11:08 AM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Error during start of msexchangeis http://www.msexchange.org -------------------------------------------------------hi, I had a space disk problem, and after made some cleaning on hard drive i had this message : Unable to start the information store service. Failed to search for msExchUce in DS - Erreur 0x80004005 I search for some know issue on both eventid and ms support, nothing that help me Any idea Anthony Paillard ------------------------------------------------------- List Archives: //www.freelists.org/archives/exchangelist/ MSExchange Newsletter: http://www.msexchange.org/pages/newsletter.asp MSExchange Articles and Tutorials: http://www.msexchange.org/articles_tutorials/ MSExchange Blogs: http://blogs.msexchange.org/ ------------------------------------------------------- Visit TechGenix.com for more information about our other sites: http://www.techgenix.com ------------------------------------------------------- To unsubscribe visit http://www.msexchange.org/pages/exchangelist.asp Report abuse to listadmin@xxxxxxxxxxxxxx