You receive an error message when you try to upload an HTML document to http://validator.w3.org

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Article ID: 890327 - View products that this article applies to.
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SYMPTOMS

When you try to validate an HTML file at http://validator.w3.org/ you receive the following error message:
Sorry, I am unable to validate this document because its content type is text/plain, which is not currently supported by this service.

CAUSE

Microsoft Windows XP Service Pack 2 is installed on your computer.

RESOLUTION

Update information

To resolve this problem, install the MS05-020 security update. For more information about how to install the MS05-020 security update, click the following article number to view the article in the Microsoft Knowledge Base:
890923 MS05-020: Cumulative security update for Internet Explorer

Properties

Article ID: 890327 - Last Review: March 26, 2007 - Revision: 2.7
APPLIES TO
  • Microsoft Windows XP Professional SP2
  • Microsoft Windows XP Home Edition SP2
  • Microsoft Windows XP Tablet PC Edition Service Pack 2 (SP2)
  • Microsoft Windows XP Media Center Edition Service Pack 2 (SP2)
Keywords: 
atdownload kbwinserv2003sp2fix kbqfe kbprb KB890327

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