Download Update Rollup 21 for Microsoft Dynamics CRM 4.0 (KB 2621054) from Official Microsoft Download Center

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Update Rollup 21 for Microsoft Dynamics CRM 4.0 (KB 2621054)

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Microsoft has released Update Rollup 21. This is a tested, cumulative set of updates for Microsoft Dynamics CRM 4.0. It includes performance enhancements that are packaged together for easy deployment.