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    Update for HTTP Issues for Microsoft® Internet Security and Acceleration (ISA) Server 2004 Standard Edition with Service Pack 2 (KB 916106)

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    This update addresses customer-reported HTTP issues for ISA Server 2004 Standard and Enterprise Editions with Service Pack 2 (SP2).
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      File Size:

      2.1 MB

        This update addresses the following HTTP issues for ISA Server 2004 Standard and Enterprise Editions with Service Pack 2 (SP2):

        • KB 915045: Error 502 "The HTTP request includes a non-supported Header" when accessing certain web servers. This occurs when accessing certain Web servers that return headers that are incompatible with each other.

        • KB 915421: Errors 11001 or 400 when accessing certain web servers. This is caused by a misinterpretation of spaces in headers provided by ISA Server, and results in a corrupted URL and failure to load the Web page.

        • KB 915422: Event ID 23004 when accessing web sites that respond with compressed content. Some Web servers always return compressed content, which is denied by ISA Server when it did not request compressed content.

        • KB 916573: Error 500 (Internal Server Error. Not implemented (-2147467263)) when trying to download zip attachments from an Outlook Web Access server. The header returned by Outlook Web Access causes ISA Server to deny the response.

        • KB 917134: Grayed out checkbox “Enable caching of content received through the BITS service”
    • Supported Operating System

      Windows Server 2003

        • ISA Server 2004 Standard Edition with Service Pack 2
      • 1. Install this update on the ISA Server computer (Standard Edition) or on each member of the ISA Server array (Enterprise Edition)

        2. Click the Download button on this page to start the download.

        3. Do one of the following:
        • To start the installation immediately, click Run.
        • To save the download to your computer for installation at a later time, click Save.
        • To cancel the installation, click Cancel.

        Important information about installation is available in the article How to install ISA Server 2004 hotfixes and updates. This includes instructions for creating a log file during installation, unattended mode installation, administrative installation, and important information about installation in ISA Server 2004 Enterprise Edition.

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