Index: new/java/com/tigervnc/vncviewer/CConn.java
===================================================================
--- new.orig/java/com/tigervnc/vncviewer/CConn.java	2013-04-18 11:56:21.000000000 +0200
+++ new/java/com/tigervnc/vncviewer/CConn.java	2013-04-18 14:23:58.000000000 +0200
@@ -246,6 +246,16 @@
     String passwordFileStr = viewer.passwordFile.getValue();
     PasswdDialog dlg;    
 
+    String usernameParam = viewer.usernameParam.getValue();
+    String passwordParam = viewer.passwordParam.getValue();
+    vlog.info("USERNAME: " + usernameParam);
+    vlog.info("PASSWORD: " + passwordParam);
+    if (usernameParam != null && passwordParam != null) {
+        user.append(usernameParam);
+        passwd.append(passwordParam);
+        return true;
+    }
+
     if (user == null && passwordFileStr != "") {
       InputStream fp = null;
       try {
Index: new/java/com/tigervnc/vncviewer/VncViewer.java
===================================================================
--- new.orig/java/com/tigervnc/vncviewer/VncViewer.java	2013-04-18 13:56:33.000000000 +0200
+++ new/java/com/tigervnc/vncviewer/VncViewer.java	2013-04-19 07:52:32.000000000 +0200
@@ -168,6 +168,9 @@
     if (firstApplet) {
       alwaysShowServerDialog.setParam(true);
       Configuration.readAppletParams(this);
+                        
+      System.err.print(Configuration.listParams());
+ 
       String tmpcert = this.getParameter("PVECert");
       if (tmpcert != null) {
           CSecurityTLS.PVECert.setParam(tmpcert.replace('|', '\n'));
@@ -263,6 +266,14 @@
                           "Password file for VNC authentication", "");
   AliasParameter passwd
   = new AliasParameter("passwd", "Alias for PasswordFile", passwordFile);
+
+  StringParameter usernameParam
+  = new StringParameter("USERNAME",
+                        "Username for VNC authentication", null);
+  StringParameter passwordParam
+  = new StringParameter("PASSWORD",
+                        "Password for VNC authentication", null);
+
   BoolParameter autoSelect
   = new BoolParameter("AutoSelect",
                           "Auto select pixel format and encoding", true);