CmdID / PowerShell / Cmdlets / Get
Get-WmsApp
Gets a collection of currently running applications in a session. Windows Server PowerShell reference
From the Windows Server PowerShell reference 2 parameters Its page in the reference
Parameters
-Server, -ComputerNameSpecifies the fully qualified host name of the MultiPoint Server that is the target of the command.-SessionIdSpecifies the ID of a Remote Desktop Session (RDS).