powerscripts/bin/Tray.ps1

$ErrorActionPreference = 'Stop'

Add-Type -A System.Windows.Forms
Add-Type –memberDefinition '[DllImport("user32.dll")]public static extern bool ShowWindow(IntPtr hWnd, int nCmdShow);' -name W32 -namespace MyTools –passThru
[MyTools.W32]::ShowWindow((Get-Process –id $pid).MainWindowHandle, 0)

$global:form = New-Object System.Windows.Forms.Form -Property @{
    Name = "form"
    Text = "form"
    Width = 1
    Height = 1
    Visible = $false
    ShowInTaskbar = $false
    WindowState= 'Minimized'
}
$global:shell = New-Object -Com "Wscript.Shell"
$global:timer = New-Object System.Windows.Forms.Timer -Property @{Interval = 6000}
$global:timer.add_tick({
    # action starts here
    $global:shell.SendKeys("WOLOLOT")
    $global:nicon.ShowBalloonTip(1000,'MyAction',"My action fired",'Info')
})

$global:cmenu = New-Object System.Windows.Forms.ContextMenuStrip
$global:cmenu.Items.Add('Pause',$null,{
    if ($this.Text -eq "Pause"){
        $global:timer.Stop()
        $this.Text = "Start"
    }else{
        $global:timer.Start()
        $this.Text = "Pause"
    }
}) | out-null

$global:cmenu.Items.Add('Exit',$null,{
    $global:timer.Stop()
    $global:timer.Dispose()
    $global:nicon.Dispose()
    $global:form.Close()
}) | out-null

$global:nicon = New-Object System.Windows.Forms.NotifyIcon -Property @{
    Icon = [System.Drawing.Icon]::ExtractAssociatedIcon((Join-Path $env:windir "System32\SystemSettingsBroker.exe"))
    Visible = $true
    ContextMenuStrip = $global:cmenu
}
$global:timer.Start()
$global:form.ShowDialog() | out-null