Sample Show Balloon Notification for PowerShell

A sample implementation of windows balloon notification for powershell is as follows:

Add-Type -AssemblyName System.Windows.Forms

function FnShowBalloon {

    [CmdLetBinding()]
    param($title, 
           $message, 
           [string] $icon = 'info', 
           [int] $delay = 20000, 
           [int] $sleep=0)

    Switch($icon.ToString().ToLower()) {
        'warn' {$iconInstance = [System.Windows.Forms.ToolTipIcon]::Warning}
        'error' {$iconInstance = [System.Windows.Forms.ToolTipIcon]::Error}
        'info' {$iconInstance = [System.Windows.Forms.ToolTipIcon]::Info}
        default {$iconInstance = [System.Windows.Forms.ToolTipIcon]::None}
    }

    $notification = New-Object System.Windows.Forms.NotifyIcon
    $path = (Get-Process -id $pid).Path
    $notification.Icon = [System.Drawing.Icon]::ExtractAssociatedIcon($path)
    $notification.BalloonTipIcon = $iconInstance
    $notification.BalloonTipTitle = $title
    $notification.BalloonTipText = $message
    $notification.Visible = $true
    $notification.ShowBalloonTip($delay)

    if ($sleep -gt 0) {
        Start-Sleep -s $sleep
        $notification.Dispose()
    }
}

The FnShowBalloon  function can be used as follows:

FnShowBalloon -title "Hello World" -message "This is a sample message" -icon info