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Windows NT Server 4.0 | Downloads

Security Update, January 5, 2001

Click to Download.
File size is 493 Kilobytes (KB).



Read Me First

This update resolves the "Malformed Web Form Submission" security vulnerability in FrontPage Server Extensions (FPSE) that ship as part of Internet Information Server (IIS) 4.0. FPSE is a set of programs that run on an IIS Web server, and administrators can use FPSE to manage and develop content for a Web site. The component of FPSE that provides support for the processing of Web forms may process malformed submissions incorrectly. If a malicious user creates a specially malformed Web form and submits it to an affected server, the IIS service could fail. If this occurs, an administrator must restart the service, and any Web sessions that are in progress at the time of an attack are lost. Download now to prevent a malicious user from disrupting the operation of your Web server.

Note This update applies to all languages.

For more information about this vulnerability, please read Microsoft Security Bulletin MS00-100.

System Requirements

This update applies to Internet Information Server 4.0 with FPSE 2000 installed.

How to download and install

  1. Click Download Now, above.
  2. Do one of the following:
    • To start the installation immediately, select Run this Program from its Current Location.
    • To copy the download to your computer for installation at a later time, select Save this Program to Disk.
  3. Click OK.

How to use

Restart your computer to complete the installation.

How to uninstall
  1. Click Start, point to Settings, and then click Control Panel.
  2. Double-click Add/Remove Programs.
  3. Select Windows 4.0 Hotfix [See Q280322 for more information] and click Add/Remove to uninstall.


 Last Updated: Monday, February 12, 2001
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