Run 32‑bit PowerShell code in Elastigroup shutdown scripts

Title

Elastigroup shutdown scripts usually run in 64‑bit PowerShell on Windows instances. If part of your script requires 32‑bit execution, for example when calling cmdlets or components that only support 32‑bit mode, you can launch a 32‑bit PowerShell session from your shutdown script.

This article shows you how to set up the alias and run 32‑bit code as part of your Elastigroup shutdown workflow.

Instructions

Add an alias in the shutdown script that points to the 64‑bit PowerShell executable capable of invoking 32‑bit mode.
Set-Alias Start-PowerShell64 "$env:windir\sysnative\WindowsPowerShell\v1.0\powershell.exe"
Use the alias to run any command or script block that must execute in 32‑bit mode.
Start-PowerShell64 <command-here>

If you need to stop an IIS application pool during shutdown, your script may look like this example:

<powershell>
  Start-Transcript -Path C:\Temp\shutdown_script.log -append
  New-Item D:\Logs\shutdown_started.txt
  Set-Content D:\Logs\shutdown_started.txt 'shutdown-script is running - running webpool Stop'
  Set-Alias Start-PowerShell64 "$env:windir\sysnative\WindowsPowerShell\v1.0\powershell.exe"
  Start-PowerShell64 {Stop-WebAppPool -Name *}
  Stop-Transcript
  Start-Sleep -s 300

Outcome

After you add the alias and call your commands through it, any functions or modules that need 32‑bit PowerShell will run correctly as part of the Elastigroup shutdown process.

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Case id: 00001065