Thoughts about setup and deployment issues, WiX, XNA, the .NET Framework and Visual Studio
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with no warranties, and confer no rights. Additionally, views expressed
herein are my own and not those of my employer, Microsoft.
Now that the final versions of Visual Studio 2010 and the .NET Framework 4 have shipped, Peter Marcu has posted an updated version of an article he wrote back in the beta 2 timeframe that describes improvements made to the .NET Framework 4 installer to improve the robustness, size and performance.
You can find the updated article at http://blogs.msdn.com/pmarcu/archive/2010/04/15/the-net-framework-4-installer-improvements.aspx, and I encourage you to take a look at it to learn more behind-the-scenes details about .NET Framework 4 setup.