anycpu

Compiles your assembly to run on any platform. This is the default behavior when you select the 64-bit Visual J# compiler and when the /platform option is not specified.

x86

Compiles your assembly to be run by the 32-bit, x86-compatible CLR. This is the default behavior when you choose the 32-bit Visual J# compiler and when the /platform option is not specified.

x64

Compiles your assembly to be run by the 64-bit CLR on a computer that supports the x64 or EM64T instruction set.

Itanium

Compiles your assembly to be run by the 64-bit CLR on a computer that has an Itanium or IA64 processor.

Use the /platform option to specify the type of processor that the output file targets.

In general, .NET Framework assemblies written in Visual J# run the same regardless of the platform.

On a 64-bit Windows operating system:

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

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

• A DLL compiled with the /platform:anycpu executes on the same CLR as the process into which it loaded.

For more information about how to develop an application that runs on a Windows 64-bit operating system, see 64-bit Applications.

Note

To be compatible with the previous releases of Visual J# Redistributable, the code generated by the 32-bit Visual J# compiler that ships with Microsoft Visual J# 2.0 Redistributable Package – Second Edition targets the x86 platform by default. To run the existing Visual J# applications natively on 64-bit platforms, rebuild the existing applications by using the /platform option and create anycpu or 64-bit platform-specific applications.

The following example shows how to use /platform to specify that the application should only be run by the 64-bit CLR on a 64-bit Windows operating system for Itanium.

vjc /platform:Itanium myItanium.jsl

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