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Thread: OST file (98)

  1. #1
    dispatcher7
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    OST file (98)

    Every so often, about once a month, the users in our office get a message about the OST file. I do not have the message word for word, but the end result is we have to find the OST file (on the local machine), delete it and restart Outlook. We use Win NT4.0 and Outlook 98. We also use a differreent local machine (1 of 8) each work day, according to our daily assignment. What is the OST file? And, is there something that can be done to stop this from occuring?

  2. #2
    Platinum Lounger
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    Re: OST file (98)

    the ost is used for offline storage. unless there is a connection you can make between machines and the error message, you may not be able to stop it. (like it only happens on a specific machine)

    i'm thinking it involves profiles, probably roaming profiles but without knowing the exact error message, i can't be sure.

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    Re: OST file (98)

    Does each machine have multiple Outlook profiles? Are the machines desktops rather than laptops? If so, there are errors in the Outlook profiles on the machines because desktops should not use Offline working. Because .ost files are copies of each person's mailbox, it is completely safe to delete them.
    IMHO the easiest way to sort this with Outlook 98 is :
    On each machine -
    Close Outlook
    do a Find/Search for *.ost
    Delete all the .ost files
    Start Outlook. If you are prompted with a message which says that the .ost file cannot be found, (which means that Outlook was set up to use offline working) click OK and you will be presented with a Browse dialogue. Cancel this dialogue.
    Outlook will start and reset itself so offline working is switched off. From that point onwards, an .ost file should never be recreated for that user profile.
    Give this script to all your colleagues and get them to do this on each machine.
    This can be a bit complicated to sort out for all combinations so repost if this does not fix the problem or if any of this does not make sense.
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  4. #4
    dispatcher7
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    Re: OST file (98)

    Yes each machine has multiple profiles, and they are desk top machines. Outlook is set to start up at our Win NT log on and open the correct profile according to the user logging on (wish I knew how they did that one). The steps you suggested is exactly what we do to delete the OST file, but we let it create a new one. I will try hitting cancel the next time I am presented with this problem and let you know if it works.

    Thanks for your help and explination.

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