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Visit this link where Announcing Cumulative Update 5 for Microsoft Dynamics AX 2012 & Microsoft Dynamics AX 2012 Feature Pack 1
http://blogs.technet.com/b/dynamicsaxse/archive/2013/04/28/announcing-cumulative-update-5-for-microsoft-dynamics-ax-2012-amp-microsoft-dynamics-ax-2012-feature-pack-1.aspx