Hotfix installation instructions: ================================ This hotfix replaces the NtOskrnl.exe file located in the \winnt\system32 directory. The hotfix utility can be used to install hotfixes, and to track hotfixes that are installed. Type "hotfix /?" for usage instructions. Note: If the target computer is a multiprocessor system, then perform the following command in order to replace the uniprocessor version of the kernel with the multiprocessor version. This step must not be done if the target computer is a uniprocessor system. Copy NtKrnlmp.exe NtOsKrnl.exe To install this hotfix, put the new Ntoskrnl.exe, hotfix.exe, and hotfix.ini 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:\Krnl-fix>hotfix /install Hotfix Version V1.4 copyright (c) Microsoft Corporation. \\MYCOMPUTER is Windows NT version 4.0, build 1381, No Service Pack Installing hotfix Q135707Q141239KrnlFix C:\Krnl-Fix>hotfix Hotfix Version V1.4 copyright (c) Microsoft Corporation. \\MYCOMPUTER is Windows NT version 4.0, build 1381, No Service Pack Q135707Q141239KrnlFix was installed on Jan 10, 1997 at 21:43:42 by administrator You must reboot the system for the Hotfixes to take effect.