Revision Note: Advisory published. Advisory Summary:Today we are announcing the availability of the Update Rollup 1 for Windows 2000 Service Pack 4 (SP4). The Update Rollup will make it easier for customers to improve security of Windows 2000 systems, keep them up to date, and to build new deployment images.The Update Rollup contains all security updates produced for Windows 2000 between the time SP4 was released and April 30, 2005, the time when the contents of the Update Rollup were locked down for final testing by Microsoft and by external beta & customer sites. The Update Rollup also contains a number of updates that increase system security, reliability, reduce support costs, and support the current generation of PC hardware.We encourage Windows 2000 SP4 customers to install this update. For more information about this release, see Microsoft Knowledge Base Article 891861.

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