How to keep remote powershell command alive after session end?

The way to keep the remote PowerShell session running after the command has finished is to use a PSSession e.g.:

$s = new-PSSession computernameInvoke-Command -session $s { ..script.. }... do other stuff, remote powershell.exe continues to runRemove-PSSession $s # when you're done with the remote session

Generally though exes should run independently from the app that launched them.

Why are you using Invoke-Command. If you want a persistent Session, use Enter-PSSession.

$s = New-PSSession -Computername "Computername";Enter-PSSession -Session $s;setup_server.exe# Once you are finnishedExit-PSSession

With 'Enter-PSSession' you are not just Invoking some Command on the Server, you are directly logged-in like you probably know from SSH.

If you want your powershell session to keep running because you are running an exe, try using the -InDisconnectedSession switch. From what I understand, it will run the executable on the remote machine in a session that isn't actually connected to your computer. In essence, your computer will not destroy the session, when it disconnects, allowing the exe to continue to run.

invoke-command -computername RCOMPUTERNAME -scriptblock {start-process setup_server.exe} -InDisconnectedSession

If you need to do this on multiple computers. Setup an array of all the computer names.

Note: I don't believe this works with sessions that are already created.