Microsoft has released a tool and patch that allow customers to diagnose and eliminate the effects of anomalies in the packaging of hotfixes for English language versions of Microsoft® Windows 2000. Under certain circumstances, these anomalies could cause the removal of some hotfixes, which could include some security patches, from a Windows 2000 system.

Frequently asked questions regarding this vulnerability and the patch can be found at http://www.microsoft.com/technet/security/bulletin/fq01-005.asp

Affected Software Versions

Microsoft Windows 2000 Professional
Microsoft Windows 2000 Server
Microsoft Windows 2000 Advanced Server

Patch Availability

Diagnostic tool:
http://www.microsoft.com/Downloads/Release.asp?ReleaseID=27333
Microsoft Windows 2000 Gold:
http://www.microsoft.com/Downloads/Release.asp?ReleaseID=27332
Microsoft Windows 2000 SP1:
http://www.microsoft.com/Downloads/Release.asp?ReleaseID=27330