Microsoft KB Archive/274803

= Internet Explorer 5.5 Does Not Allow Compressed Content Over HTTP Version 1.0 =

Article ID: 274803

Article Last Modified on 1/29/2007

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APPLIES TO


 * Microsoft Internet Explorer 5.5
 * Microsoft Internet Explorer 5.5
 * Microsoft Internet Explorer 5.5

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This article was previously published under Q274803



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 version 5.5 accepts compressed content with HyperText Transfer Protocol (HTTP) version 1.0 over a direct connection to the Internet or by using a proxy connection. Note that Internet Explorer 5.01 does not accept compressed content with HTTP 1.0 over a direct connection to the Internet, but it does accept compression with HTTP 1.0 over a proxy connection.



RESOLUTION
To resolve this problem, obtain and install Internet Explorer 5.5 Service Pack 1. For additional information about how to do so, click the article number below to view the article in the Microsoft Knowledge Base:

276369 How to Obtain Internet Explorer 5.5 Service Pack 1



WORKAROUND
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 work around this problem, note that Internet Explorer 5.5 Service Pack 1 has added functionality so that Internet Explorer version 5.5 can use compressed content over HTTP 1.0. However, to enable this functionality, use Registry Editor (Regedt32.exe) to view the following registry key:

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Internet Settings

Add the following registry value, and then quit Registry Editor:

Value Name: AllowGZipThroughProxy

Data Type: REG_DWORD

Radix: Hexidecimal

Value: 0x00000001



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

Keywords: kbenv kbprb kbie550sp1fix KB274803

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