This blog post discusses using a msgbox in PowerShell, including some input from MBS that you may find helps do the "no buttons" thing
http://appsensebigot.blogspot.co.uk/2013/10/case-study-ensuring-user-doesnt-have.html
This blog post discusses using a msgbox in PowerShell, including some input from MBS that you may find helps do the "no buttons" thing
http://appsensebigot.blogspot.co.uk/2013/10/case-study-ensuring-user-doesnt-have.html