Microsoft KB Archive/840388

= Data does not decompress when you use behaviors with compressed data in Internet Explorer 6 =

Article ID: 840388

Article Last Modified on 8/29/2007

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APPLIES TO


 * Microsoft Internet Explorer (Programming) 6.0

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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
When you use behaviors to download information from a file to an HTML document, and Static Compression is turned on in Microsoft Internet Information Services (IIS), the data that is downloaded to the HTML document does not always appear. Typically, the document loads as expected on the first attempt. However, dynamic data may not appear when you try to download it again.



CAUSE
This problem occurs because Microsoft Internet Explorer always reads compressed data as being cached, even if the cache-control setting specifies a different value.



Hotfix information
A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

File information
The English version of this hotfix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.   Date         Time   Version        Size     File name ---  16-Apr-2004  01:58  6.0.2800.1421  485,888  Urlmon.dll 16-Apr-2004 01:59  6.0.2800.1421  589,824  Wininet.dll

Installation 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.

After you install this hotfix, follow these steps:  Quit Internet Explorer. Click Start, and then click Run. In the Open box, type regedit, and then click OK. Locate and then click the following registry subkey:

HKEY_CURRENT_USER\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_TEMPORARYFILES_FOR_NOCACHE_840387

 Click Edit, point to New, and then click DWORD Value.</li> Type Iexplore.exe, and then press ENTER.</li> Right-click Iexplore.exe, and then click Modify.</li> In the Value data box, type 00000001, and then click OK.</li> On the File menu, click Exit to quit Registry Editor.</li></ol>

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WORKAROUND
To work around this behavior for dynamic HTML (DHTML) functionality, turn off Static Compression on IIS for maximum compatibility.

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STATUS
Microsoft has confirmed that this is a problem in Microsoft Internet Explorer 6.

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