How to detect 32-bit or 64-bit OS in Flex?

I need to detect 32-bit or 64-bit OS through Flex.

var osName : String = Capabilities.os;

This only gives Windows XP or Windows 7. I need to detect 64-bit Windows XP. Pl开发者_开发问答ease advise.

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Does Capabilities.supports64BitProcesses do the trick for you?