Microsoft tells us:
DotNetFxredist_x86.msm must not be used to redistribute the .NET Framework
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TO CORRECT this error
In Solution Explorer, Select The DotNetFxredist_x86.msm Merge Module. In The Properties Window, Select The Exclude Property and Set It To True.
Quote from: http://msdn.microsoft.com/library/default.asp? URL = / library / en-us / vsintro7 / html / vxerrdotnetfxredist_x86_enumsmmustnotbeusedtoreDIStributeNetFramework.asp
Therefore, DOTNETFXREDIST_X86.MSM or DOTNETFXREDIST_X86_CHS.MSM itself cannot be part of the installation package.