Verb RunAs in a Start-Process Powershell command causes an error

Question

If I run the following command in a Poweshell script file ($cmd refers to some executable):

Start-Process -FilePath $cmd -Verb RunAs Powershell

Then it executes OK

But if I slightly modify it:

Start-Process -NoNewWindow -FilePath $cmd -Verb RunAs Powershell 

Or like this:

Start-Process -FilePath $cmd -ArgumentList @("status") -Verb RunAs Powershell 

... then the command fails with the following error message:

Start-Process : Parameter set cannot be resolved using the specified named parameters.

I wonder why this format is not accepted and how should I modify the command to both specify an argument list and option "-Verb RunAs..."

Condensate

Guessing that -NoNewWindow and -Verb RunAs cannot be combined since you can elevate the session currently used. Going to check and see if that is true. I read that they are incompatible – Arethaarethusa

Oh I see, that is why! Thanks for the clarification. I could accept it as an answer if you rewrite your observation as an answer. – Condensate

Which version of PowerShell? The OP's original statement doesn't work in v7.0... – Telephonist

Answer 1

Guessing that -NoNewWindow and -Verb RunAs cannot be combined since you can't elevate the session currently used.

Upon futher investigation you are not the only one to look into this. I read that they are incompatible here

Depending on your motivation for running it like this you could just hide the window

Start-Process "powershell" -Verb "runas" -WindowStyle hidden

You can also look into PSSessions which can handle this type of thing as well. That could start an interactive session in the same window.

Arethaarethusa

Bingo! In fact this is quite logical. It would be strange if it was possible to elevate permissions without leaving a session represented by current window. – Condensate

@VagifAbilov So what's the solution? – Palacio

Answer 2

Maybe this helps you out:

$cmd = 'powershell.exe'
$arguments = "-NoLogo -NoProfile -WindowStyle Maximized"
Start-Process $cmd $arguments -Verb runAs

Another example from here:

Start-Process powershell -Credential mydomain\mydomainAdmin -ArgumentList '-noprofile -command &{Start-Process notepad -verb runas}'

Can you try it with your program and arguments and see how it goes?

Deafmute

It goes fine but it's not what I am after. I want to be able to pass "-NoNewWindow" option, and for some reasons I can't combine it with the Verb. The same goes for ArgumentList option. I am trying to understand why they can't be combined. – Condensate