break on
Dim $index, $RC, $Group
? "Redirection: " + SetOption("WOW64FileRedirection")
$rc = SetOption("WOW64FileRedirection","OFF")
? "Redirection: " + SetOption("WOW64FileRedirection")
$index=0
$Group=Enumgroup($index)
While len($Group)
  $index=$index+1
  $Group=Enumgroup($index)
loop 
? "Number of Groups:  " + $index
if ingroup(Enumgroup(0))
  ? "In Group 0"
else
  ? "Not in Group 0"
endif