call notify balloon message in windows 7 from cmd?

Here is a working compressed call to powershell. Every part of it is important, because it needs basic notification icon, and "visible" flag.

powershell [Reflection.Assembly]::LoadWithPartialName("""System.Windows.Forms""");$obj=New-Object Windows.Forms.NotifyIcon;$obj.Icon = [drawing.icon]::ExtractAssociatedIcon($PSHOME + """\powershell.exe""");$obj.Visible = $True;$obj.ShowBalloonTip(100000, """TITLE""","""NOTIFICATION""",2)>nul

You may use NirCmd by Nir Sofer like this:

NirCmd.exe trayballoon [Title] [Balloon Text] [Icon File] [Timeout] 

This does not seem to work for Windows 10. There you may use Toast.exe, which writes to the message area instead.

Toast.exe  -t "Title text" -m "Message"  -p NotificationImage.png

You have to turn on notifications for Toast.exe in the Windows 10 settings dialog under Settings > Notifications & Actions