c# - Why is the checkbox 'Prefer 32-bit' disabled in Visual Studio 2012? -


i came across situation in set prefer 32-bit true. in visual studio 2012, showing disabled. , no matter doesn't enabled.

i read any cpu prefer 32-bit default value new projects. so, should assume although disabled set true? how can set any cpu?

in what anycpu means of .net 4.5 , visual studio 11 , in many other posts , questions here in stack overflow says:

overall, there 5 options /platform c# compiler switch: x86, itanium, x64, anycpu, , anycpu 32bit preferred

what's more, have collegues have mentioned me in past checkbox enabled (maybe wrong?).

why prefer 32-bit checkbox disabled, , how can enable again?

my processor 64-bit, , have applied update2 visual studio 2012.

assuming you've got executable project, if change target platform .net 4.5, should become enabled.

it's .net 4.5-only thing, , it's enabled executables.


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