--- takeover.py	(Revision 67446)
+++ takeover.py	(Arbeitskopie)
@@ -775,6 +775,7 @@ 
 		self.ad_server_ip = self.AD.domain_info["ad_ip"]
 		self.ad_server_fqdn = self.AD.domain_info["ad_hostname"]
 		self.ad_server_name = self.AD.domain_info["ad_netbios_name"]
+		self.ad_netbios_domain = self.AD.domain_info["ad_netbios_domain"]
 
 		self.lp = LoadParm()
 		try:
@@ -886,6 +887,7 @@ 
 			run_and_output_to_log(["univention-config-registry", "set",
 									"nameserver1/local=%s" % nameserver1_orig,
 									"nameserver1=%s" % self.ad_server_ip,
+									"windows/domain=%s" % self.ad_netbios_domain,
 									"directory/manager/web/modules/users/user/properties/username/syntax=string",
 									"directory/manager/web/modules/groups/group/properties/name/syntax=string",
 									"dns/backend=ldap"], log.debug)