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    Outlook Performance Series: Outlook data file (.pst or .ost file) issues

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    Welcome to troubleshooting performance issues for MS Outlook 2007 Series - Part 4

    If the .pst file or the .ost file shuts down incorrectly, you may receive one of the following error messages the next time that you start Outlook:

    Error message 1:  Outlook cannot open the data file filename until it has been checked for problems.

    Error message 2: Microsoft Office Outlook’ exited without properly closing your Outlook data file ‘drive:\Users\username\AppData\Local\Microsoft\Outlook\outlook.ost’. ‘Microsoft Office Outlook’ must be restarted. If this error message recurs, contact support for ‘Microsoft Office Outlook’ for assistance.

    Error message 3 : The data file filename was not closed properly’. This file is being checked for problems.

    If you receive one or more of these error messages, you may experience performance issues until Outlook finishes the reconciliation process for the .ost file or for the .pst file. The following gear icon is displayed in the status bar while Outlook checks the data file in the background:

     Outlook 2007 gear icon

    When this icon disappears, the .pst file or the .ost file is reconciled. If you exit Outlook while the gear icon is present, reconciliation must restart the next time that you run Outlook. It's recommended that you leave Outlook running until the gear icon disappears before you exit Outlook.

    An incorrectly shut down .ost file or .pst file may occur for one of the following reasons:

    Antivirus scanning of the file
    Forced Microsoft Windows shutdown before the Outlook.exe process shuts down completely
    Outlook add-ins

    If you see this issue frequently, and you have to exit Outlook shortly before you shut down your computer, it may be better to shut down Windows while Outlook is still running.

  • Le Café Central de DeVa

    Outlook Performance Series : How to troubleshoot performance issues in Outlook 2007 with .pst or .ost files?

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    Welcome to troubleshooting performance issues in MS Outlook Series - Part 2

    Do you face any one of the following issue, when you work with MS Outlook 2007?

    When you try to,

    • read e-mail emessages ?
    • move e-mail messages?
    • delete e-mail messages?

    Do you face Microsoft Office Outlook 2007 momentarily stops responding?

    Do you know, these symptoms are most noticeable during mail delivery or during synchronization. These symptoms become more pronounced as store size increases. They are more likely to occur when the size of the .pst file or the size of the .ost file approaches 2 gigabytes (GB). Additionally, they are more pronounced in a very large .pst file or in a very large .ost file that is 4 GB or larger. 

    For more information, please find this wonderful article, which talks about how to troubleshoot the performance issues in Outlook 2007 and with respect to larger .pst or .ost files. 

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    Powershell : How to sort the mailboxes based on their size on ascending order ?

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    When we make use of Exchange Server 2007 SP1 & Windows Powershell, if we have a requirement to sort the mailboxes based on their size on the ascending order, then try this command:

    Get-MailboxStatistics -Server Servername | Sort-Object -Property TotalItemSize | Format-Table DisplayName,TotalItemSize

  • Le Café Central de DeVa

    Outlook Performance Series : Outlook 2007 & Windows Vista error - .pst file could not be opened

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    Welcome to troubleshooting performance issues - MS Outlook Performance Series - Part 6 

    One of my customer reported that he is facing issue with Outlook 2007 & Windows Vista environment, as he can't open the .pst files.

    He get the following error: <sample>.pst file could not be opened. The file may not be compatible with this version of Outlook or it may be corrupted.

    End of the research, we found the issue happens due to the mail file is in an encrypted folder.

    To work around this problem, we need to make use of Inbox Repair Tool (Scanpst.exe) to repair the personal mail file.

    Please find the following http://support.microsoft.com/kb/934545 which describes the issue, causes and its resolution in-detail.

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    Outlook Performance Series: Outlook 2007, POP3 & Windows Vista Issue - TCP Scaling

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    Welcome to troubleshooting performance issues - MS Outlook Performance Series - Part 5

    Recently I was working with one of my customer, we came across a strange issue.

    He has MS Outlook 2007 which was running on Windows Vista. He updated that it takes long time to download an e-mail message from a POP3 server in Microsoft Office Outlook 2007. Whenever they download a mail with attachment (for example .5 megabyte (MB) message), the download takes more than one hour.

    Additionally, when they send e-mail messages by using the SMTP server of their Internet service provider (ISP), they get time out issue and also got the following error message:

    Task 'Main - Sending and Receiving' reported error (0x800CCC0F) : 'The connection to the server was interrupted. If this problem continues, contact your server administrator or Internet service provider (ISP).'

    At the end of the research, we found the issue happens due to "TCP Scaling", a new feature introduced in Windows Vista. This problem occurs if a network hardware device, such as a router, does not support TCP Window Scaling.

    Please find the following article http://support.microsoft.com/kb/935400, which describes the issue and its resolution in-detail.

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    Outlook Performance Series : Performance tips for deploying Outlook 2007 ?

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    Welcome to troubleshooting performance issues for deploying MS Outlook 2007 Series - Part 3 

    In general, when we talk about Performance, we can't ignore various basic parameters like cache mode/non-cache mode, .pst/.ost files, Windows desktop search, search options, indexing, with/without word as an editor, collection of resources, settings or Outlook 2007's configuration part, etc.

    Please find this article, which provides a collection of resources to help you understand potential issues around Microsoft Office Outlook 2007 performance, and to assist you in configuring features for best performance in your organization...

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