these packages are required to run all of the downloads here.

XNA 4: http://forums.create.msdn.com/forums/t/1988.aspx

For games built with 4.0 XNA Framework:

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1. .NET Framework 4 Full, depending on whether or not your game uses features that are in Full but not Client.
2. XNA Framework Redistributable 4.0 - the C++ redist and the relevant DirectX components are included in the XNA Framework Redistributable 4.0 and do not need to be installed separately.

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