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upload file using ajax and send as email attachment without saving to server

I'm trying to upload a file using ajax to a handler and then sending that file as an email attachment without saving the file to the server.  I've tried several examples that I've found online, however, I'm not getting anywhere.
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I was able to get this to work using the code below, however, it saves the file to the server first.  Does anyone know how to code it without saving it?
Dim fileName As String = HttpContext.Current.Request.QueryString("FileName").ToString
        Dim fs As FileStream = File.Create((context.Server.MapPath("~/" + fileName)))
        Dim buffer() As Byte = New Byte(((32 * 1024)) - 1) {}
        Dim read As Integer = context.Request.GetBufferlessInputStream.Read(Buffer, 0, Buffer.Length)
        While (read > 0)
            fs.Write(Buffer, 0, read)
            read = context.Request.GetBufferlessInputStream.Read(Buffer, 0, Buffer.Length)
        End While

        'Mail File
        Dim myMail As New System.Net.Mail.MailMessage("", "", "test", "Attachement test")
        Dim mail As New System.Net.Mail.SmtpClient()
        myMail.Attachments.Add(item:=New Attachment(HttpContext.Current.Server.MapPath("~/" & filename)))
        myMail.IsBodyHtml = True
        myMail = Nothing
        fs = Nothing

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Robert Schutt
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I tried the example above with the results below:
The First Solution
Sometimes it sent and sometimes it did not.  When it does send what appears to be a partial version of the file.  I attached a 30kb file and what was sent was a 3kb file.  

The Second Solution
Worked fine consistently.  Thanks!