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Q257625: Err Msg: HTTP: 500-100, Internal Server Error - ASP Error…

Article: Q257625
Product(s): Internet Information Server
Version(s): winnt:5.0
Operating System(s): 
Keyword(s): kbOSWin2000 kbiis500prod2web kbhttp500100 kbProd2Web
Last Modified: 13-MAY-2002

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The information in this article applies to:

- Microsoft Internet Information Services version 5.0 
-------------------------------------------------------------------------------

SYMPTOMS
========

When you attempt to browse an ASP Web page, the following error messages are
displayed in the browser:

  The page cannot be displayed
  There is a problem with the page you are trying to reach and it cannot be
  displayed.

  HTTP 500.100 - Internal Server Error - ASP error
  Internet Information Services

In addition, information similar to the following is displayed under the
"Technical Information (for support personnel)" section:

  Error Type:
  Microsoft VBScript runtime (0x800A01F4)
  Variable is undefined: 'x'
  /OptionExplicitError.asp, line 9

  Page:
  GET /OptionExplicitError.asp

CAUSE
=====

When you use Visual Basic, Scripting Edition, the Option Explicit statement is
specified in the script of the ASP file. Subsequently, the script attempts to
use an undeclared variable.

RESOLUTION
==========

Too resolve this issue, either remove the Option Explicit statement or declare
the variable (using the DIM keyword).

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

Steps to Reproduce Behavior
---------------------------

To reproduce this behavior, run an ASP file that contains the following code (in
a virtual directory that permits script execution):

  <% Option Explicit %>
  <HTML>
  <HEAD>
  <TITLE>500-100 Undeclared Variable</TITLE>
  </HEAD>
  <BODY>
  <P>About to use an undeclared variable</P>
  <% 
    x = 5
  %>
  </B></P>
  </BODY>
  </HTML>

To fix the example above, declare the X variable using the DIM statement, which
is demonstrated as follows:

  <% Option Explicit %>
  <HTML>
  <HEAD>
  <TITLE>500-100 Undeclared Variable</TITLE>
  </HEAD>
  <BODY>
  <P>About to use an undeclared variable</P>
  <% 
    DIM x
    x = 5
  %>
  </B></P>
  </BODY>
  </HTML>

Microsoft provides programming examples for illustration only, without warranty
either expressed or implied, including, but not limited to, the implied
warranties of merchantability and/or fitness for a particular purpose. This
article assumes that you are familiar with the programming language being
demonstrated and the tools used to create and debug procedures. Microsoft
support professionals can help explain the functionality of a particular
procedure, but they will not modify these examples to provide added
functionality or construct procedures to meet your specific needs. If you have
limited programming experience, you may want to contact a Microsoft Certified
Partner or the Microsoft fee-based consulting line at (800) 936-5200. For more
information about Microsoft Certified Partners, please visit the following
Microsoft Web site:

  http://www.microsoft.com/partner/referral/

For more information about the support options that are available and about how
to contact Microsoft, visit the following Microsoft Web site:

  http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS

(c) Microsoft Corporation 2000, All Rights Reserved. Contributions by Kevin
Zollman, Microsoft Corporation.


Additional query words: IIS 5 500100 500-100 500;100 undefined vbs vbscript debug active script pages akz

======================================================================
Keywords          : kbOSWin2000 kbiis500prod2web kbhttp500100 kbProd2Web 
Technology        : kbiisSearch kbiis500
Version           : winnt:5.0
Issue type        : kbprb

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

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