Windows Server 2008 R2 is 64 bit only so we we get two instances of PowerShell and ISE. One (64bit version) is just labelled Windows PowerShell V2 and Windows PowerShell V2 ISE. The 32bit version has (x86) appended to the name.
One point to watch for – the 64 and 32bit versions have different execution policies – you need to set both
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