diff --git a/squid_auth.xml b/squid_auth.xml
index 2453bde..e714473 100644
--- squid_auth.xml
+++ squid_auth.xml
@@ -104,6 +104,7 @@
 				<option><name>LDAP</name><value>ldap</value></option>
 				<option><name>RADIUS</name><value>radius</value></option>
 				<option><name>Captive Portal</name><value>cp</value></option>
+				<option><name>Winbind NTLM</name><value>ntlm</value></option>
 			</options>
 			<onchange>on_auth_method_changed()</onchange>
 		</field>
@@ -178,6 +179,32 @@
 			<rows>5</rows>
 			<encoding>base64</encoding>
 		</field>
+ 		<field>
+		    <name>Squid Authentication NTLM Settings</name>
+		    <type>listtopic</type>
+		</field>
+		<field>
+		    <fielddescr>NTLMSSP Negotiate</fielddescr>
+		    <fieldname>ntlmssp</fieldname>
+		    <description>Use the NTLMSSP Negotiate packet (Transparent authentication in Windows Domain)</description>
+		    <type>checkbox</type>
+		    <default_value>on</default_value>
+		</field>
+		<field>
+		    <fielddescr>NTLMSSP Auth processes</fielddescr>
+		    <fieldname>ntlm_proc</fieldname>
+		    <description>The number of authenticator processes to spawn. If many authentications are expected within a short timeframe, increase this number accordingly.</description>
+		    <type>input</type>
+		    <size>40</size>
+		    <default_value>20</default_value>
+		</field>
+		<field>
+		    <fielddescr>NTLM Default Domain</fielddescr>
+		    <fieldname>ntlm_domain</fieldname>
+		    <description>Set the default domain for use in ntlm authentication</description>
+		    <type>input</type>
+		    <size>50</size>
+		</field>		
 		<field>
 			<name>Squid Authentication LDAP Settings</name>
 			<type>listtopic</type>