DO NOT install this hotfix if you have already installed Icmp-fix. For more information, please see the following article in the Microsoft Knowledge Base: DOCUMENT-ID: Q154174 TITLE : Invalid ICMP Datagram Fragments Hang Windows NT, Windows 95 1. This hotfix is packaged in an auto-install format. Type the executable name to install it. For example, type "oobfix_a" for x86 platforms or "oobfix_a" for Alpha platforms (without the quotation marks). 2. The files can also be extracted from the hotfix without installing them. To do this, copy the hotfix to a temporary directory, and type "oobfix_i /x" or "oobfix_a /x" (without the quotation marks). After extracting the files, the hotfix can be installed by typing "hotfix" (without the quotation marks).