Sorry. Wrong DNS in the workstation that I tested with, not to the Active Directory DNS.
that gave all the errors....


So now the script works perfect. Here is the code to all if you want to ADD a group from the Domain into a Local group on a workstation:

Dim $iRC
$iRC=SetOption('Explicit','On')
$iRC=SetOption('NoVarsInStrings','On')
Dim $Computer,$Group,$User
$Domain = "MyDOM"
$Computer = "ws001"
$Group = GetObject("WinNT://" + $Computer + "/Administrators,group")
$Group.Add("WinNT://$Domain/Domain Users")

/Mima