If you ask yourself the question, whether you would want to install the 32 bit or the 64 bit version, consult the table below and check the explanations.
|MS Flight Simulator 2004||32 bit||MS FS 2004 is using 3rd party libraries only available in 32 bit|
|MS Flight Simulator X||32 bit||MS FSX is using SimConnect form MS which is only available in 32 bit|
|Prepar 3D v1 - v3 (32 bit)||32 bit||Prepar3D is using SimConnect from MS which is only available in 32 bit|
|Prepar 3D v4 (64 bit)||32 bit & 64 bit||Checkout P3D and swift - 32 or 64 bit? what are the pros & cons.|
|X-Plane 10||32 bit & 64 bit||64 bit is recommended since it can have more memory. But 32 bit should work fine using the respective X-Plane executables.|
|X-Plane 11||64 bit||X-Plane 11 is 64 bit only.|
If you are not using any simulator (e.g. just the mapping tool), the 64 bit version is recommended.
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