run script block as a specific user with Powershell

Question

I am not getting anywhere when using Start-Process / Start-Job cmdlets with -Credential $cred

Problem

I have a service account use in deployment (unattended

Answer 1

I ended up enabling WinRM using WinRM quickconfig

I was then able to use Invoke-Command

    $cred = new-object -typename System.Management.Automation.PSCredential -argumentlist $username, $password

Invoke-Command {
    param(
        [string]$WebAppName 
    )
     #elevated command here

} -comp $computerName -cred $cred  -ArgumentList @("$myWebAppId")

Answer 2

Hi this might be an example that might work for you let me know if it does.

$global:credentials = new-object -typename System.Management.Automation.PSCredential 


$job = Start-Job -ScriptBlock {Get-Service} -Credential $credentials

Wait-Job $job

Receive-Job $job

Answer 3

While there's no quick and easy way to do this in PowerShell 2.0, version 3.0 (currently in RC, mostly likely RTW very soon given that Windows 8 RTW will appear on MSDN/Technet tomorrow) supports the notion of configuring remoting endpoints with a custom identity. This would be done with the Register-PSSessionConfiguration cmdlet on the computer where you want the command to run, which may be the local computer. Then, when using Invoke-Command, provide a session with the -Session parameter. The session is created using the New-PSSession cmdlet, which lets you specify the computer and the configuration name (which is tied to the custom identity.)

Clear as mud?