string

x86, Itanium, x64, or anycpu (default).

• x86 compiles your assembly to be run by the 32-bit, x86-compatible common language runtime.

• Itanium compiles your assembly to be run by the 64-bit common language runtime on a computer with an Itanium processor.

• x64 compiles your assembly to be run by the 64-bit common language runtime on a computer that supports the x64 or EM64T instruction set.

• anycpu (default) compiles your assembly to run on any platform.

On a 64-bit Windows operating system:

• Assemblies compiled with /platform:x86 will execute on the 32 bit CLR running under WOW64.

• Executables compiled with the /platform:anycpu will execute on the 64 bit CLR.

• DLLs compiled with the /platform:anycpu will execute on the same CLR as the process into which it is being loaded.

For more information about developing an application to run on a Windows 64-bit operating system, see 64-bit Applications.

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