backup ost on a network share

Hi to all of you ,
I need urgently to find a solution to backup Outlook ost files on a network share Even on an online storage service provider.
CAn you please provide me you suggestions and tell me your experience ?
I need to deploy this on 20 clients/ laptops.

thank you
CArlo
CarloAsked:
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AnuroopsunddCommented:
why do you require to backup ost files?
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jpvargassorucoCommented:
Its better to backup the Exchange database, because the *.ost files only have an offline copy of the user's data.
If you delete the *.ost file, it should be automatically recreated by Outlook downloading the Data from the exchange database.
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AnuroopsunddCommented:
As said.. no one backup OST file. we only backup PST file or exchange database.
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GillesTCommented:
There is no need to backup ost files, it is a cache of your Exchange mailbox that need to be backed up
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CarloAuthor Commented:
I was not clear :
we had a problem importing messages into mailboxes and now these messages aer stored only on the OST and not on the exchange database, I have another question open here.
So we have don't want to risk and we would like to backup ost for the time beeing we find a solution on our problem.
thank you
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jpvargassorucoCommented:
You need to create a logoff script and set it to copy the file to a network share.
Here is an example:

@echo off
set backupcmd=xcopy /c /d /e /h /r /y

echo Backing up OST settings...
%backupcmd% "%USERPROFILE%\Local Settings\ Application Data\ Microsoft\ Outlook\*.*" "UNC path to your share"

Here are some help full links:
* To Assign the script to the users:
http://technet.microsoft.com/en-us/library/cc781354(v=ws.10).aspx
* Information about OST files:
http://www.ostfile.com/ost-file-location.html
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GillesTCommented:
If you copy .ost file on an other computer, you will not be able to read it in Outlook ! You will need an external product to convert .ost to .pst
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CarloAuthor Commented:
GillesT,
ok you are there, do you know anything or did you test something ?

like

http://www.safepstbackup.com/Enterprise.aspx
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GillesTCommented:
Sorry I am not clear.
Only the OWNER of the .ost file can open the .ost file and he needs to be the OWNER of the Exchange mailbox (and to have a current connexion to the AD) http://support.microsoft.com/kb/831058/en-us?fr=1
I never try that, but I already study to open .ost another domain, and we don't succeed (it was a need for a migration)
Of course you can use an external tool to read ost. There are a lot of tools on Internet, backup pst/ost tools, repair pst/ost tools or online services that are able to do the job
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CarloAuthor Commented:
There are a lot of tools on Internet, backup pst/ost tools, repair pst/ost tools or online services that are able to do the job

can you please reccomend one
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GillesTCommented:
The better tool to recover .pst file if Outlook Advanced Repair, so I can recommend Advanced Exchange Recovery to manage .ost file from the same editor
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CarloAuthor Commented:
WE are now working with Safepstbackup Enterprise and it maches our needs.
Thank you
CArlo
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CarloAuthor Commented:
this is the obnly software that allows to backup ost online
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