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Windows NT Server 4.0 | Downloads

Security Update, October 7, 2000

Select your language from the drop-down list below and click Next.


Read Me First

This update resolves the "Multiple LPC and LPC Ports" security vulnerability in Windows NT® 4.0. Local Procedure Call (LPC) is a message-passing service provided by Windows NT 4.0. LPC ports are channels within LPC that allow threads (a series of messages that have been posted as replies to each other) within a communication process to coordinate LPC requests. Windows NT 4.0 is unable to handle unexpected LPCs properly. If a malicious user makes process requests in an invalid order, or uses invalid parameters, it could cause your computer to fail or permit a malicious user to impersonate your privileges and eavesdrop. Download now to prevent a malicious user from causing your computer to fail, impersonating your privileges, or causing the client or server to fail by posing as the client or server and sending random data.

For more information, please read Microsoft Security Bulletin MS00-070 and MS00-003.

System Requirements

This update applies to:
  • Windows NT 4.0 Workstation
  • Windows NT 4.0 Server
  • Windows NT 4.0 Server, Enterprise Edition
  • Windows NT 4.0 Server, Terminal Server Edition

How to download and install

  1. Select your language from the drop-down list above.
  2. Click Next.
  3. On the following page, click Download Now.
  4. 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.
  5. Click OK.

How to use

You don't need to do anything after installing this item.

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 Q266433 for more information] and click Add/Remove to uninstall.

 Last Updated: Tuesday, June 05, 2001
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