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C#-created .msg file will not open on download RRS feed

  • Question

  • (Please forgive me for plagiarizing myself from StackOverflow today):

    I am working in C# and I created an .msg file (more like reconstituted one) after having read it out of Exchange and made it downloadable from a website.

    However even though all that works just fine, when I try to open the .msg file after download from the website, I see this error: "Cannot start Microsoft Outlook. We can't open ------.msg It's possible the file is already open, or you don't have permission to open it."

    The same error occurs in Chrome or in IE, regardless of whether Outlook is open. Further it occurs even though the read permissions are permitted on the file. I have Outlook 2016.

    Anyone else have this issue or thoughts on how to resolve?

    Tuesday, July 11, 2017 6:48 PM

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