How to launch 64-bit powershell from 32-bit cmd.exe?

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

This script will check as see what version of powershell you are running and will relaunch itself to 64-bit if you are running in 32-bit. When the relaunch occurs it will also pass in any parameters used in the original call.

##############################################################################If Powershell is running the 32-bit version on a 64-bit machine, we #need to force powershell to run in 64-bit mode .#############################################################################if ($env:PROCESSOR_ARCHITEW6432 -eq "AMD64") {    write-warning "Y'arg Matey, we're off to 64-bit land....."    if ($myInvocation.Line) {        &"$env:WINDIR\sysnative\windowspowershell\v1.0\powershell.exe" -NonInteractive -NoProfile $myInvocation.Line    }else{        &"$env:WINDIR\sysnative\windowspowershell\v1.0\powershell.exe" -NonInteractive -NoProfile -file "$($myInvocation.InvocationName)" $args    }exit $lastexitcode}write-host "Main script body"##############################################################################End#############################################################################