' Modify Terminal Services Encryption Level
Const HIGH_ENCRYPTION = 3
strComputer = "."
Set objWMIService = GetObject("winmgmts:" _
& "{impersonationLevel=impersonate}\\" & strComputer & "\root\cimv2")
Set colItems = objWMIService.ExecQuery("Select * from Win32_TSGeneralSetting")
For Each objItem in colItems
errResult = objItem.SetEncryptionLevel(HIGH_ENCRYPTION)
Next