In Texis version 8 and later, <stat>'s $ret.owner and
$ret.group return values include the domain name under Windows.
In previous versions they did not. In syntaxversion 8 and
later, these variables are only set if the RESOLVEUSERNAMES
flag is given (to save time/resources), and are set empty otherwise.
The $ret.ownerid and $ret.groupid variables are only set
in syntaxversion 8 and later.