[thelist] .NET file downloader: access denied (still)

Joel D Canfield joel at streamliine.com
Thu Aug 9 09:58:44 CDT 2007

Crystal Tech says the permissions are correct, and the problem must be
in the code. Any thoughts on why the code below (it's the entire page)
would cause the error "Access to the path "D:\inetpub\spinhead\test" is
denied" in reference to this line?

    sourceFile = IO.File.Open(fullpath, IO.FileMode.Open)

The link (first line in the body) works just fine. Well, in IE, it opens
the file in an instance of Excel in the browser which is what I'd

<%@ Page Language="VB" Debug="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"

<script runat="server">
    Sub BtnDownloadManual_Click(ByVal sender As Object, ByVal e As
        Dim path As IO.Path
        Dim fullpath = path.GetFullPath(txtFilePath.Text)
        Dim name = txtFileName.Text
        Dim ext = path.GetExtension(fullpath)
        Dim type As String = ""
        If Not IsDBNull(ext) Then
            ext = LCase(ext)
        End If
        type = "Application/x-msexcel"
        Dim sourceFile As IO.FileStream
        sourceFile = IO.File.Open(fullpath, IO.FileMode.Open)
        Dim getContent(sourceFile.Length) As Byte
        sourceFile.Read(getContent, 0, sourceFile.Length)
        Response.AddHeader("content-disposition", "attachment;
filename=" + name)
        If type <> "" Then
            Response.ContentType = type
        End If
    End Sub

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Force Download</title>
    <p><a href="joel.csv">plain link to joel.csv</a></p>
    <form id="DownloadForm" runat="server">
    <asp:TextBox id="txtFilePath" Columns="24" Runat="Server"
Visible="True" value="D:\inetpub\spinhead\test" />
    <asp:textbox id="txtFileName" runat="Server" columns="24"
value="joel.csv" visible="True" /><br />
    <asp:Button id="BtnDownloadManual" style="font-family: Verdana;
font-size:7pt" Text="Download Orders" OnClick="BtnDownloadManual_Click"
runat="server" />

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