Simple dialog box in PowerShell

InputBox.ps1

# Load libraries 
[void][System.Reflection.Assembly]::LoadWithPartialName('Microsoft.VisualBasic')

# Selection box
$input = [Microsoft.VisualBasic.Interaction]::MsgBox("Do you agree?", 'YesNoCancel,Question', "Respond Please")

# Process input as desired 
switch($input) 
{ 
  'Yes' 
  { 
    Write-Host "Good Choice" -ForegroundColor Green 
  }
  'No' 
  { 
    Write-Host "You've selected No" -ForegroundColor Red 
  } 
  'Cancel' 
  { 
    Write-Warning "Exiting this script..." 
  } 
}

# General input box
$info = [Microsoft.VisualBasic.Interaction]::InputBox("Enter Some Data", `
  "Title box", "Initial Default Value")

# Shows what the user entered
Write-Host $info -ForegroundColor Cyan