To work with Graphical User Interfaces (GUIs) in PowerShell, you can use the Show-Command cmdlet to display a GUI for a cmdlet or function, or you can use the Out-GridView cmdlet to display tabular data in a GUI window.  The Show-Command cmdlet displays a GUI that allows you to interactively enter cmdlet parameters and view the cmdlet's help. To use Show-Command, you can simply specify the name of the cmdlet or function you want to display the GUI for. For example:  Show-Command Get-Process  The Out-GridView cmdlet displays tabular data in a GUI window that allows you to sort and filter the data. To use Out-GridView, you can pipe the output of a cmdlet or function to Out-GridView. For example:  Get-Process | Out-GridView  You can also use the Add-Type cmdlet to define custom .NET classes and create GUI windows using Windows Presentation Foundation (WPF) or Windows Forms. For example, to create a simple WPF window, you can use the following code:  Add-Type -AssemblyName PresentationFramework
$window = New-Object System.Windows.Window
$window.Title = "My Window"
$window.Width = 400
$window.Height = 300
$window.ShowDialog()