# This Perl code changes the mode of the specified domain to native

# ---------------------------------------------------------------
# Adapted from VBScript code contained in the book:
#      "Active Directory Cookbook" by Robbie Allen
# Publisher: O'Reilly and Associates
# ISBN: 0-596-00466-4
# Book web site: http://rallenhome.com/books/adcookbook/code.html
# ---------------------------------------------------------------

# ------ SCRIPT CONFIGURATION ------
my $strDomain = "<DomainDNSName>";  # e.g. amer.rallencorp.com
# ------ END CONFIGURATION ---------
use Win32::OLE;
$Win32::OLE::Warn = 3;
my $objDomain = Win32::OLE->GetObject("LDAP://" . $strDomain);
if ($objDomain->Get("nTMixedDomain") > 0 ) {
   print "Changing mode to native...\n";
   $objDomain->Put("nTMixedDomain", 0);
   $objDomain->SetInfo;
}
else {
   print "Already a native mode domain\n";
}