Microsoft Knowledge Base Article 895090 contains the following INTRODUCTION:
This article describes the updates and hotfixes that we recommend for Microsoft Windows 2000-based server clusters.
When you update your Windows 2000-based server cluster, you help reduce downtime. You also help decrease the number of support
issues that you may experience.
Note We recommend that you evaluate these updates and hotfixes to determine whether they might resolve problems in your environment. If you determine that cluster nodes in your environment may experience the problem that an update or a hotfix addresses, apply the update or the hotfix on each one of the cluster nodes in your environment.
A short summary appears together with each hotfix and update that appears in the "More Information" section. This summary does not replace the information that is contained in the original Microsoft Knowledge Base (KB) article for each update and hotfix. Use the information that appears in the "More Information" section to help you determine whether each update or hotfix applies to your server cluster. Before you apply an update or a hotfix, we recommend that you review the original KB article that describes it.