Read Me First
This update resolves the "IP Fragment Reassembly" security
vulnerability in Windows NT 4.0. Installing this update will
minimize the negative effects that fragmented Internet
Protocol (IP) datagrams could have on your computer's central
processing unit (CPU). IP datagrams are a necessary part of
network and Internet communication. If a continuous stream of
fragmented IP datagrams with a particular malformation were
sent to an affected computer, it could be made to devote most
or all of its CPU availability to processing these fragments.
The vulnerability does not allow a malicious user to
compromise data on the computer or take administrative control
For more information on this vulnerability, please visit
Microsoft Security Bulletin MS00-029.
How to download and install
save your work and close all open programs before
- Click the x86 (Intel) or Compaq DIGITAL
Alpha link above to download the version of the update
that applies to your computer.
- Select your language from the drop-down list provided on
the following page and click Next.
- On the last page, click Download Now and follow
the instructions on your screen.
How to use
Restart your computer to complete the
How to uninstall
- Click Start, point to Settings and click
- Double-click Add/Remove Programs.
- Select Windows 4.0 Hotfix [See Q259728 for more
information] and click Add/Remove to uninstall.