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  • WinZip - Cannot open file: it does not appear to be a valid archive.

    Hi, I try to add uploaded files (HttpPostedFile) to a zip file then put into a MailMessage Attachment. I used ZipOutputStream and MemoryStream... works all fine until I try to open the zipped attachment. WinZip throw a error - Cannot open file: it does not appear to be a valid archive. My code as below...
    Posted to Forum by wing on 04-30-2010
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