Web site content is not updated or you receive an unrecoverable error message in Internet Explorer Service Pack 1 (SP1) on a computer that is running Windows Server 2003 (843526)

The information in this article applies to:

Microsoft Internet Explorer 6.0 SP1, when used with:
- Microsoft Windows Server 2003, Web Edition
- Microsoft Windows Server 2003, Standard Edition
- Microsoft Windows Server 2003, Enterprise Edition
- Microsoft Windows Server 2003, 64-Bit Enterprise Edition

SYMPTOMS

When you use Microsoft Internet Explorer 6 Service Pack 1 (SP1) on a Microsoft Windows Server 2003-based computer to connect to a Web site, you may experience one of the following symptoms:

Content is not updated, as specified by the Web site. For example, images are not updated.
Internet Explorer quits unexpectedly, or you receive the following error message:
Internet Explorer has encountered a problem and needs to close. We are sorry for the inconvenience.
If you want to see the data that is contained in the error report, click click here at the bottom of the error message box. Then, you receive error signature information that may be similar to the following:
AppName AppVer ModName ModVer Offset
Iexplore.exe 6.0.2800.1106 Wininet.dll 6.0.2800.1106 varies

CAUSE

This problem may occur if the Web site uses the post-check directive in an HTTP header to perform a lazy update of content on the Web page that you are viewing. For example, this problem may occur if the Web site uses the following custom HTTP header:

Cache-Control: post-check=3600,pre-check=7200

If the site administrator removes this custom HTTP header, the problem does not occur.

RESOLUTION

Update information

For an update that resolves this problem, click the following article number to view the article in the Microsoft Knowledge Base:

834707 MS04-038: Cumulative Security Update for Internet Explorer

   Date         Time   Version       Size     File name
   ------------------------------------------------------
   29-Sep-2004  19:25  6.0.3790.218  625,152  Wininet.dll

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

MORE INFORMATION

A Post-check directive is a cache-control directive that is included with the HTTP Expires header. Web sites use the HTTP Expires header to control how Internet Explorer caches content on the Web site. Post-check defines a time interval (in seconds) that defines after which an object must be checked for "freshness". This check allows Internet Explorer to display the content from its cache or in the Temporary Internet Files folder, and then update the cached copy of the content in the background. This update is also known as a lazy update.

Modification Type:	Major	Last Reviewed:	11/1/2004
Keywords:	kbBug kbfix kbQFE kbWinServ2003preSP1fix KB843526 kbAudITPRO