Microsoft Security Advisory ms00-005 - Windows 2000 Post Service Pack 1 hotfixes made available through December 18, 2000 can cause Windows File Protection to remove a valid hotfix from a system. If the hotfixes were added in a certain order, a customer's system reverts to a version of a Windows 2000 module that contains security vulnerabilities. Microsoft FAQ on this issue available here.
Microsoft Security Advisory ms00-005 - Windows 2000 Post Service Pack 1 hotfixes made available through December 18, 2000 can cause Windows File Protection to remove a valid hotfix from a system. If the hotfixes were added in a certain order, a customer's system reverts to a version of a Windows 2000 module that contains security vulnerabilities. Microsoft FAQ on this issue available here.