Hotfix installation instructions: ================================ This hotfix replaces the TCPIP.SYS file in the \winnt\system32\drivers directory. The hotfix utility can be used to install hotfixes, and to track hotfixes that are installed. Type "hotfix /?" for usage instructions. To install this hotfix, put the new TCPIP.SYS file, hotfix.exe file, and the hotfix.ini file in the same (temporary) directory, and then type "hotfix /install". After installation, type "hotfix" to verify that it was installed correctly. Finally, reboot the system. Sample operation is shown below: C:\temp>hotfix Hotfix Version v1.2 copyright (c) Microsoft Corporation. \\MYCOMPUTER is Windows NT version 3.51, build 1057, Service Pack 4 Hotfix: No hotfixes installed on system. C:\temp>hotfix /install Hotfix Version v1.2 copyright (c) Microsoft Corporation. \\MYCOMPUTER is Windows NT version 3.51, build 1057, Service Pack 4 Installing hotfix Q153596 TCP/IP Sequence fix C:\temp>hotfix Hotfix Version v1.2 copyright (c) Microsoft Corporation. \\MYCOMPUTER is Windows NT version 3.51, build 1057, Service Pack 4 Q153596 TCP/IP Sequence fix was installed on July 24, 1996 at 11:01:19 by administrator