Beeping PowerShell

Your colleague went to lunch again without properly locking his computer? Then this is your chance to run this code on his PowerShell:

$powershell = [PowerShell]::Create()

$code = 
{
  while ($true)
  {
    Start-Sleep -Milliseconds 3000
    [Console]::Beep(400, 500)
  }
  
}

$null = $powershell.AddScript($code)

$handle = $powershell.BeginInvoke()

It starts a background thread and beeps every three seconds. Fortunately, beeping stops when you close PowerShell. It’s a simple example illustrating how you can run arbitrary PowerShell code in a new background thread.

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