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Thumbnail inside an OPC packaging file is not showing in Windows 8 RRS feed

  • Question

  • Hi,

    We use the .Net System.IO.Packaging library to generate our product settings files with our own custom parts and each file contains a thumbnail part. On Windows 7 all the files show their thumbnail in Windows Explorer (when set to show large icons). However, on Windows 8, they only show the icon that is associated with the file extension. The installer and file format are the same for Windows 7 and 8.

    Something has changed in Windows 8. Is there anything we need to add in the registry on Windows 8? The reason I suspect the registry changes is that when I change the file extension to ".pptx", Windows 8 does show the thumbnail that is contained in my file, which tells me that Windows 8 did find the thumbnail, so the file format is still acceptable by Windows 8.

    Any help is appreciated!

    Thanks,

    Minao

    Wednesday, December 4, 2013 9:14 PM

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