Installation_EP and Role Center_ MOSS 2010

Hi Friends

I have installed Sharepoint 2010 successfully.But when i am trying to install EP and Role Center i am getting an Prerequisite Error of WSS 3.0 SP1.I came to know that we need to apply hotfix for 2009 sp1 with Knowledge Base 2278963. I didnt find any Hotfix .Please help me out in Installation of EP on MOSS 2010.

The Server we are using is Windows Server 2008 R2 64 bit.

Thanks in Advance



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