Offline Address Book

What is the use of Offline Address book in 2003 and 2008. How does the Offline Address Book works?
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kunalclkAsked:
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kryloszCommented:
It is meant for users you use the Exchange Cache Mode to have access to the address book while not being connected to the exchange server.
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kryloszCommented:
oh i forgot to mention: it updates generally once a day and clients download a copy (or just an update) of it when they connect to the exchange server.
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kunalclkAuthor Commented:
krylosz even I am aware of it; this is just a one word of the huge amount of work it does. I need to know the complete cycle.
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kunalclkAuthor Commented:
Any updates???????????
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Delphineous SilverwingGood Ol' GeekCommented:
The "Offline Address Book" (OAB) stores the address for Outlook users that may use Outlook while traveling or disconnected from the network - also referred to as offline mode.

The system administrator intitially configures which address list(s) are populated into the OAB.  The OAB is then stored on the Exchange Server, automatically updated by the system as environment changes occur, and is retrieved by Offline enabled clients (like Outlook).
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Delphineous SilverwingGood Ol' GeekCommented:
Here is a great resource for detailed information on configuring your OAB:
http://www.msexchange.org/tutorials/Offline-Address-Book-Best-Practice.html
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kunalclkAuthor Commented:
Okay I shall tell what I need. Say the OAB thinks to get update then it goes to Hub transport Server for an update. What happens next?
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peakpeakCommented:
I believe you've got it wrong, the OAB is composed from Active Directory information, not from the Hub. When you inintiate an OAB update manually or when it happes automatically once per 24 hours (normally 5:00 AM)  the information is gathered from the database on one of your Domain Controllers. You need to read up on this and there's a lot to read. Here's one place to start:
http://exchangeis.com/blogs/exchangeis/archive/2008/04/15/exchange-2007-roles-an-introduction-to-exchange-2007-server-roles.aspx
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kunalclkAuthor Commented:
Dear peakpeak recently I gave an interview, I was not selected that is a second thought however I shall tell you and all the experts or layman reading there:- First I shall tell my email id for any clarification:- ##:- please read>>>


offline adress book is in file distribution server then it goes to iis and in 2007 it works by public folder that distributes it and 2007 distributes it through the hub transport server.
<<<

You all are a experts I do not know why I have to cry and ask it.


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Qlemo"Batchelor", Developer and EE Topic AdvisorCommented:
Whatever you think you know is wrong, as 5 minutes of Googling and reading reveals with ease; for example at http://www.howexchangeworks.com/2009/08/how-offline-address-book-works-in.html .

Outlook (!) 2003 (!) uses an OAB file in a public folder, 2007 and up do no longer. CAS is the one providing it then, and it relies on the IIS to propagate both address and data. Hub Server is not part of the flow.
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Glen KnightCommented:
Qlemo is almost right :)

The OAB in Exchange 2007 and 2010 can also be distributed via Public Fokders and indeed will need to be to support Outlook 2003 as this has no idea what a web distributed OAB is.

In which case, strictly speaking the OAB is distributed by both the CAS server and the Mailbox Server.
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kunalclkAuthor Commented:
thanks for help was not okay sorry.
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kunalclkAuthor Commented:
please help me to have unlock the question asking ability
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