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    Security Update for Exchange 5.5 (KB842436)

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    This update addresses the vulnerability addressed in the Microsoft Windows Security Bulletin MS04-026. To find out if more recent security updates are available for you, see the Overview section of this page.
    • Version:


      File Name:


      Date Published:


      File Size:

      5.1 MB

      KB Articles: KB842436

      Security bulletins:MS04-026

        About this download: A security issue has been identified that could allow an attacker to run programs and access data on a computer running Microsoft® Exchange Server 5.5. You can help protect your computer by installing this update from Microsoft.
    • Supported Operating System

      Windows 2000, Windows NT

        • Exchange 5.5 SP4 already installed
        1. Click the Download button on this page to start the download, or choose a different language from the drop-down list and click Go.
        2. Do one of the following:
          • To start the installation immediately, click Open or Run this program from its current location.
          • To copy the download to your computer for installation at a later time, click Save or Save this program to disk.
      • Other critical security updates are available: To find the latest security updates for you visit Windows Update and click "Express Install." To have the latest security updates delivered directly to your computer, visit Protect your PC and follow the 3 easy steps to ensure you’re protected.

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