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I have an annoying error when opening outlook 2003 &quot;an extension failed to initialize, can't open file: extend.dat. the file may not exist, you may not have permission to open it, or it may open in another program. right click folder that contain file, then click Properties to check permission...&quot;<br />
I even try to uninstall office 2003 than reinstall but still no luck.<br />
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Any suggestion would be appreciated. 
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I have an annoying error when opening outlook 2003 "an extension failed to initialize, can't open file: extend.dat. the file may not exist, you may not have permission to open it, or it may open in another program. right click folder that contain file, then click Properties to check permission..."
I even try to uninstall office 2003 than reinstall but still no luck.

Any suggestion would be appreciated. 

error when open outlook 2003

Microsoft Outlook is a personal information manager from Microsoft, available as a part of the Microsoft Office suite. Although often used mainly as an email application, it also includes a calendar, task manager, contact manager, note-taker, journal, and web browser.