Add Private computer and Lite version options back to OWA

When searching how to brand the OWA page with a server name, i came across this post by  Arjan Mensch.

It describes how to add the Lite OWA version and the Private computer options back in to OWA 2013 (and maybe even 2016, but i'm not able to test this).

As you may remember from Exchange 2010, there was an option to choose your privacy mode for the session:

• This is a public or shared computer
• This is a private computer
• Use Outlook Web App Light

Choosing between public or shared means different timeout values for the OWA session.

To bring the public private option back to OWA run in the Exchange powerShell:

Get-OwaVirtualDirectory | Set-OwaVirtualDirectory -LogonPagePublicPrivateSelectionEnabled $true

To bring back the Light version of OWA:

Get-OwaVirtualDirectory | Set-OwaVirtualDirectory -LogonPageLightSelectionEnabled $true

To enable both the "private public" and "Lite" option for several servers in a nice onliner:

Get-OwaVirtualDirectory | Where-Object {$_.owaversion -eq "Exchange2013"} | Set-OwaVirtualDirectory -LogonPagePublicPrivateSelectionEnabled $true -LogonPageLightSelectionEnabled $true

After running these command-lets you need to restart IIS.
To do this for all servers you can run this:

$servers = "server1","server2","server3","server4","server5","server6"
foreach ($server in $servers) 
{
restart-service -servicename "w3svc"
}