Microsoft KB Archive/239750

= "Text/Plain" Content-Type Header Field Is Ignored =

Article ID: 239750

Article Last Modified on 1/25/2007

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APPLIES TO


 * Microsoft Internet Explorer 5.0
 * Microsoft Internet Explorer 5.0
 * Microsoft Internet Explorer 5.0

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This article was previously published under Q239750



IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows Registry



SYMPTOMS
Internet Explorer may not use the "Text/Plain" Content-Type header field to properly open a text file on a Web site. For example, if a text file has an extension commonly associated with an executable binary file, Internet Explorer may try to run the text file instead of opening it as text.



RESOLUTION
A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem. This fix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:

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

NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The typical support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English-language version of this fix should have the following file attributes or later:



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.



MORE INFORMATION
WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

To use this fix, you must add the following registry value to the key listed below:

Key: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings

Value name: IsTextPlainHonored

Value type: DWORD

Value data: HEX 0x1

Keywords: kbqfe kbprb kbhotfixserver KB239750

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