Fix Windows batch file error.

diff --git a/etc/tavernerpos.bat b/etc/tavernerpos.bat
index 7215e8c..3c37e87 100755
--- a/etc/tavernerpos.bat
+++ b/etc/tavernerpos.bat
@@ -1,3 +1,3 @@
 @echo off

-java -jar java -jar ./tavernerPOS.jar
\ No newline at end of file
+java  -jar ./tavernerPOS.jar
\ No newline at end of file
diff --git a/src/com/floreantpos/config/TerminalConfig.java b/src/com/floreantpos/config/TerminalConfig.java
index a083501..a4dbf49 100755
--- a/src/com/floreantpos/config/TerminalConfig.java
+++ b/src/com/floreantpos/config/TerminalConfig.java
@@ -54,7 +54,7 @@ public class TerminalConfig {

 		if (isAutoTerminalID()==true) {
 			int terminalID=NetInfo.getTerminalIDFromMACAddr();
-			if (terminalID!=-1l) {
+			if (terminalID!=-1) {
 				return(terminalID);
 			}
 		}
diff --git a/src/com/floreantpos/getnetinfo/NetInfo.java b/src/com/floreantpos/getnetinfo/NetInfo.java
index f26f3c8..514a4c7 100755
--- a/src/com/floreantpos/getnetinfo/NetInfo.java
+++ b/src/com/floreantpos/getnetinfo/NetInfo.java
@@ -27,15 +27,42 @@ public class NetInfo {

 	 public static String getMACAddr() {

-			InetAddress ip;
 			try {
+				byte[] mac = null;
+				NetworkInterface network = null;
+				int c=0;
+				while((network==null) && (c<100)) {
+					System.out.print("Auto Terminal ID - Trying Network Interface: "+c+"\n");
+					network = NetworkInterface.getByIndex(c);
+					if (network != null)  {
+						mac = network.getHardwareAddress();
+
+						if (mac == null) {
+							network=null;
+							c++;
+							continue;
+						}
+
+						if (network.isLoopback()) {
+							network=null;
+							c++;
+							continue;
+						}
+
+					}
+					c++;
+				}

-				ip = InetAddress.getLocalHost();
-
-				NetworkInterface network = NetworkInterface.getByInetAddress(ip);
-
-				byte[] mac = network.getHardwareAddress();
-
+				if (network==null) {
+					System.out.print("MAC (interface) could not be determined for deriving TerminalID.\n");
+					return(null);
+				}
+
+				if (mac==null) {
+					System.out.print("MAC (hardware address) could not be determined for deriving TerminalID.\n");
+					return(null);
+				}
+
 				StringBuilder sb = new StringBuilder();
 				for (int i = 0; i < mac.length; i++) {
 					//sb.append(String.format("%02X%s", mac[i], (i < mac.length - 1) ? "-" : ""));
@@ -43,16 +70,14 @@ public class NetInfo {
 				}
 				return(sb.toString());

-			} catch (UnknownHostException e) {
-
-				//e.printStackTrace();

 			} catch (SocketException e){

 				//e.printStackTrace();

 			}
-
+
+
 			return(null);

 		   }
@@ -63,7 +88,8 @@ public class NetInfo {
 	 	 String terminalID = null;
 		  if ( mac != null) {
 		 	 terminalID=mac.replace("-","");
-			 terminalID=terminalID.substring(terminalID.length() - 10);
+			 System.out.println("MAC Address: "+terminalID);
+			 terminalID=terminalID.substring(terminalID.length() - 8);
 		 	} else return(-1);
 			return(Integer.parseInt(terminalID));
 		  }