I know it\'s a weird question but I am locked into a third party vendor which launches a 32-bit cmd.exe on a target 64-bit Windows Server 2008 R2 clustered server. From here
syswow64 lets you run 32 bit system executables from 64 bit code. sysnative lets you run 64 bit system executables from 32 bit code.
So, you need to run:
%SystemRoot%\sysnative\WindowsPowerShell\v1.0\powershell.exe