Microsoft Knowledge Base Article 894193 contains the following summary and introduction:

SUMMARY

This article describes how to obtain and use the Enterprise Update Scan Tool that is included in some security bulletin releases. It describes where you can obtain the February 8, 2005 Enterprise Update Scan Tool. Then, the article discusses how to analyze the contents of the Results.xml file that the tool creates. Next, some brief suggestions are provided if you want to consolidate data from multiple computers after you run the tool. This article describes how to uninstall the Enterprise Update Scan Tool. This article discusses some of the limitations of the tool. The article finishes with a series of frequently asked questions (FAQ) sections. The first FAQ is a general FAQ. This general FAQ is followed by an FAQ for bulletin-specific versions of the Enterprise Update Scan Tool. Next, there is an FAQ for the Microsoft System Management Server (SMS) version of the Enterprise Update Scan Tool. The article ends with an FAQ that discusses some of the known issues.

INTRODUCTION

This article contains step-by-step instructions that describe how to use the Enterprise Update Scan Tool that is provided with some security bulletin releases. This tool lets you scan for the updates that are released with Microsoft Security Response Center (MSRC) bulletins where Microsoft System Management Server or another enterprise management solution is not used to manage updates. The steps that are provided are sample steps. You may have to modify the steps according to the requirements and the limitations of your environment.