PowerShell 3+
It is fairly easy to use WPF (Windows Presentation Foundation) to create and show simple dialog windows in PowerShell. If you’d like to display a quick message, check this out:
Add-Type -AssemblyName PresentationFramework $window = New-Object Windows.Window $window.Title = 'Warning' $window.WindowStartupLocation = 'CenterScreen' $window.Topmost = $true $TextBlock = New-Object System.Windows.Controls.TextBlock $TextBlock.Text = 'You really should stop working and get some sunshine every now and then!' $TextBlock.Margin = 20 $window.Content = $TextBlock $window.SizeToContent = 'WidthAndHeight' $null = $window.ShowDialog()