Opening or editing .mpp file (MS Project file) in the SharePoint library ?
Hello, When opening or editing .mpp file (MS Project file) in the SharePoint library (I mean, By clicking on the item link) it opens inside the IE browser instead of in MS Project application itself. Why is that? Other MS Office files (e.g. Word, Excel) do not behave like that. So could you please tell me what to do in order to make .mpp file opens in MS Project application itself and not inside the IE browser ???
July 20th, 2011 3:59pm

Hi Sam, You need to check and make sure the Adds-on “SharePoint OpenDocuments Class” was enabled via the IE Tools -> Manage add-ons -> Microsoft Corporation section . Then the .mpp file should also be opened by MS Project application. Thanks, Daniel Regards, Daniel
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July 22nd, 2011 1:36pm

Hi Sam, First, you should make sure you have install MS Project in the computer already. Then you need go to your document library and click settings>Document Library Setting>Advanced settings. Choosing open in the client application which under Browser-enabled Documents. If this doesn't work, please refer to the following article and use the Folder Options tool to fix it: http://support.microsoft.com/kb/162059/en-usRegards, Rock Wang Microsoft Online Community Support
July 26th, 2011 2:45pm

We are having the same issue as Sam - my settings are correct for file types, sharepoint is set properly to open in client and the add-on is enabled. Still Project documents open in the browser unless you specifically select edit. Sam did you get your issue resolved? Thank you, Robin
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November 19th, 2011 12:52pm

Hi Sam, Leaving my machine to default setting with IE8 and MS Project already installed, opens the file in application. Just tested.Regards Nikhil
November 19th, 2011 2:46pm

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