Hi, I am trying fresh install of exchange2007, everything gone well but, finally it thrown a error saying : Unable to initialize the Microsoft Exchange Information Store service. Failed to find the working directory parameter from the registry - Error 0x80004005. the installation log says 6/5/2007 3:14:05 PM] [1] Processing component 'Mailbox Service Control (Last)' (Starting mailbox services). [6/5/2007 3:14:05 PM] [1] Executing 'start-SetupService -ServiceName MSExchangeIS -MaximumWaitTime "unlimited"', handleError = False [6/5/2007 3:14:05 PM] [2] Launching sub-task '$error.Clear(); start-SetupService -ServiceName MSExchangeIS -MaximumWaitTime "unlimited"'. [6/5/2007 3:14:05 PM] [2] Beginning processing. [6/5/2007 3:14:05 PM] [2] The maximum wait for the operation is set to 'unlimited'. [6/5/2007 3:14:05 PM] [2] Service checkpoint has progressed. Previous checkpoint='0' - Current checkpoint='1'. [6/5/2007 3:14:05 PM] [2] Will wait '10000' milliseconds for the service 'MSExchangeIS' to reach status 'Running'. [6/5/2007 3:14:15 PM] [2] Service 'MSExchangeIS' failed to reach status 'Running' on this server after waiting for '10000' milliseconds. [6/5/2007 3:14:15 PM] [2] Service 'MSExchangeIS' failed to start. Check the event log for possible reasons for the service start failure. [6/5/2007 3:14:15 PM] [2] [ERROR] Unexpected Error [6/5/2007 3:14:15 PM] [2] [ERROR] Service 'MSExchangeIS' failed to start. Check the event log for possible reasons for the service start failure. [6/5/2007 3:14:15 PM] [2] Ending processing. [6/5/2007 3:14:15 PM] [1] The following 1 error(s) occurred during task execution: [6/5/2007 3:14:15 PM] [1] 0. ErrorRecord: Service 'MSExchangeIS' failed to start. Check the event log for possible reasons for the service start failure. [6/5/2007 3:14:15 PM] [1] 0. ErrorRecord: Microsoft.Exchange.Configuration.Tasks.ServiceFailedToStartException: Service 'MSExchangeIS' failed to start. Check the event log for possible reasons for the service start failure. [6/5/2007 3:14:15 PM] [1] [ERROR] Service 'MSExchangeIS' failed to start. Check the event log for possible reasons for the service start failure. [6/5/2007 3:14:15 PM] [1] Setup is halting task execution because of one or more errors in a critical task. [6/5/2007 3:14:15 PM] [1] Finished executing component tasks. [6/5/2007 3:14:15 PM] [1] Ending processing. [6/5/2007 3:14:18 PM] [0] End of Setup [6/5/2007 3:14:18 PM] [0] ********************************************** this I am trying on my test system please help me out in resolving the issue thanks in advance,

I too am having this problem. Anyone with ideas?

Gary, Open Registry Editor. In Registry Editor, navigate to the following registry key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeIS\ParametersSystem Create the following value (REG_SZ): Working Directory and give it a value that points to the new database folder. Make sure you back up the registry before you do any changes on it.Raj

A million thanks to you, Raj!!! I've been fighting with this problem too and came across this thread. I was trying to install Exchange 2007 on Windows 2008R2, with the collection of problems of course. This was the last missing piece of the puzzle. Thanks again. George

Glad to hear that problem got resolved.Raj

Hi All, I have this same issue but am confused on how to create these changes on the registry. Please can anyone give me a step by step solution of implementing the required changes. Ifeatu