Hello, My information store shuts down every 30 minuts unexpected. I already did a ofline defrag of the database but it doesn't help. The only error in de eventviewer is that the service was stoppen unexpectly. Anny help is welcome. Regards, Peter Discart

That error message does not give us much information. What version are you running, and what are the exact error codes. Are you sure you are not low on space in your information store?

It is and Exchange 2003on a W2003. The following error is loged in to the application event log with id 9673 Event Type:ErrorEvent Source:Application ErrorEvent Category:(100)Event ID:1000Date:29/09/2007Time:21:53:09User:N/AComputer:DISCART-MQJ45N4Description:Faulting application iexplore.exe, version 7.0.6000.16512, faulting module unknown, version 0.0.0.0, fault address 0x69724120. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.Data:0000: 41 70 70 6c 69 63 61 74 Applicat0008: 69 6f 6e 20 46 61 69 6c ion Fail0010: 75 72 65 20 20 69 65 78 ure iex0018: 70 6c 6f 72 65 2e 65 78 plore.ex0020: 65 20 37 2e 30 2e 36 30 e 7.0.600028: 30 30 2e 31 36 35 31 32 00.165120030: 20 69 6e 20 75 6e 6b 6e in unkn0038: 6f 77 6e 20 30 2e 30 2e own 0.0.0040: 30 2e 30 20 61 74 20 6f 0.0 at o0048: 66 66 73 65 74 20 36 39 ffset 690050: 37 32 34 31 32 30 724120 In the system eventlog i see at the same time the following message with ID 7031 Event Type:ErrorEvent Source:Service Control ManagerEvent Category:NoneEvent ID:7031Date:29/09/2007Time:21:33:27User:N/AComputer:DISCART-MQJ45N4Description:The Microsoft Exchange Information Store service terminated unexpectedly. It has done this 1 time(s). The following corrective action will be taken in 60000 milliseconds: Restart the service. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.