Data for a POST Request Is Not Downloaded Completely in a Custom MIME Viewer

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Article ID: 310388 - View products that this article applies to.
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When Internet Explorer makes a POST request for data with a MIME type that is handled by a custom ActiveX control, Internet Explorer stops downloading the data after the first portion is received. This problem occurs with large data responses (over roughly 20 KB).


Internet Explorer uses the first part of the downloaded data to determine what type of data it is, but does not download the remainder of the data.


To resolve this problem, obtain the latest service pack for Internet Explorer 6. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
328548 How to Obtain the Latest Internet Explorer 6 Service Pack
The English version of this fix should have the following file attributes or later:
   Date         Time   Version        Size     File name
   12-Nov-2001  11:14  6.0.2711.1200  479,232  Urlmon.dll


To work around this problem, you can either use a GET request, or you can make a POST request for the HTML file that hosts the ActiveX control by using the OBJECT tag.


Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Internet Explorer 6 Service Pack 1.


This problem can occur with ActiveX control-based MIME handlers other than Adobe Acrobat. Internet Explorer contains code to handle Portable Document Format (PDF) files in a different manner that causes the file to be downloaded completely.

The hotfix also corrects a problem in which double GET requests are sent when you click a link for MIME data that is handled by an ActiveX control.


Article ID: 310388 - Last Review: February 28, 2014 - Revision: 3.10
  • Microsoft Internet Explorer 6.0, when used with:
    • Microsoft Windows XP Home Edition
    • Microsoft Windows XP Professional
    • Microsoft Windows XP Media Center Edition
    • Microsoft Windows XP Tablet PC Edition
    • Microsoft Windows 2000 Advanced Server
    • Microsoft Windows 2000 Datacenter Server
    • Microsoft Windows 2000 Professional Edition
    • Microsoft Windows 2000 Server
    • Microsoft Windows NT Server 4.0 Standard Edition
    • Microsoft Windows NT Server 4.0, Terminal Server Edition
    • Microsoft Windows NT Workstation 4.0 Developer Edition
    • Microsoft Windows 98 Second Edition
    • Microsoft Windows 98 Standard Edition
kbnosurvey kbarchive kbbug kbfix kburlmon kbqfe kbie600presp1fix kbie600sp1fix kbhotfixserver KB310388

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