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Q244758: Returns "Type Mismatch" Error After Request.BinaryRead() Method

Article: Q244758
Product(s): Internet Information Server
Version(s): winnt:5.0
Operating System(s): 
Keyword(s): 
Last Modified: 04-FEB-2000

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The information in this article applies to:

- Microsoft Internet Information Services version 5.0 
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SYMPTOMS
========

When an ASP page that uses the Request.BinaryRead() method generates an error
and control is passed to the 500-100.asp error page, the following error is
generated:

  Microsoft VBScript runtime error '800a000d'
  Type mismatch: 'Server.HTMLEncode'
  /iisHelp/common/500-100.asp, line ...

CAUSE
=====

This error is generated because the POST information from the Request.BinaryRead
method returns an array, whereas the Server.HTMLEncode method in the 500-100.asp
page expects a string to be passed.

WORKAROUND
==========

The default 500-100.asp error page can be modified to ignore errors by adding an
"On Error" statement:

1. Open Windows Explorer.

2. Change folders to your %SystemRoot%\help\iishelp\common folder.

3. Open 500-100.asp in Notepad.

4. The top lines of the file should resemble the following:

  <%@ language="VBScript" %>
  <%
    Option Explicit

    Const lngMaxFormBytes = 200

5. Change the top few lines to read the following:

  <%@ language="VBScript" %>
  <%
    Option Explicit
    On Error Resume Next

    Const lngMaxFormBytes = 200

MORE INFORMATION
================

The following steps reproduce this error on a server that is using the default,
unmodified 500-100.asp error page:

1. Save the following code as ERRTEST1.ASP in the root directory of your Web
  site:

  <html>
  <head><title>Page 1</title></head>
  <body>
  <form action="errtest2.asp" method="POST">
  <input type="text" name="test">
  <input type="submit">
  </form>
  </body>
  </html>

2. Next, save the following code as ERRTEST2.ASP in the root directory of your
  Web site:

  <%@LANGUAGE="VBSCRIPT"%>
  <html>
  <head><title>Page 2</title></head>
  <body>
  <%
    Dim vntPostedData, lngCount, lngError
    lngCount = Request.TotalBytes
    vntPostedData = Request.BinaryRead(lngCount)
    Response.Write "POST Size: " & lngCount
    lngError = 1/0
  %>
  </body>
  </html>

3. Browsing page 1 and submitting information to page 2 should return an error
  message like the following:

  Error Type: Microsoft VBScript runtime (0x800A000B) Division by zero
  /errtest2.asp, line 10

  Browser Type: Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)

  Page: POST 9 bytes to /errtest2.asp

  POST Data: Microsoft VBScript runtime error '800a000d' Type mismatch:
  'Server.HTMLEncode' /iisHelp/common/500-100.asp, line 184

Additional query words: iis

======================================================================
Keywords          :  
Technology        : kbiisSearch kbiis500
Version           : winnt:5.0
Issue type        : kbprb
Solution Type     : kbpending

=============================================================================

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