Is there any problems in IE if using RMI.?

Question

Hello buddies,
this is my 3rd attempt to get answer. before it i tried 2 times but didn't get answered.
actually i m making a chat application. in that there is a canvas on which we can draw something and send it to all users. i make an applet and from within the applet i m calling a frame. all this awt components like canvas and buttons etc. displays in the frame. applet is just a platform do call the frame. i m using RMI to do the chat. i tried to run it first in appletviewer and it works fine. but when i tried to run in IE from <applet> tag no frame is displays. i am trying to solve it from last 20 days but still unsolved. here is the code if anybody wishes to try it.
// clinet frame...
import java.rmi.*;
import java.rmi.server.*;
import canvas.Drawer;
import java.awt.*;
import java.applet.*;
import java.applet.Applet;
import java.awt.event.*;
import java.util.*;
import ru.zhuk.graphics.*;
/*<applet code="ChatClient" width=600 height=300>
</applet>
public class ChatClient extends Frame implements IChatClient,ActionListener,MouseListener,MouseMotionListener
     // GLOBAL VARIABLES USED IN THE PROGRAMME...
     boolean flag=false;
     int n;
     String str="";
     String Coord=null;
     IChatService service=null;
     FrameApplet fa=null;
     TextField servername,serverport,username;
     Button connect,disconnect;
     TextField message;
     Button send,sendText;
     TextArea fromserver;
     int i=0,j=0;
     int x[] = new int[1000];
     int y[] = new int[1000];
     Drawer canvas;
     boolean connected=false;
     String title,user="";
     // Class Members //
     public ChatClient()
     public ChatClient(String str)
          super(str);
          setBounds(50,20,600,450);
          setLayout(new FlowLayout(FlowLayout.CENTER,45,10));
          title=str;
          setStatus();
          // Create controls //
          add(new Label("Chat Server Name : "));
          servername=new TextField(20);
          add(servername);
          servername.setText("localhost");
          add(new Label("Chat Server Port : "));
          serverport=new TextField(20);
          add(serverport);
          serverport.setText("900");
          add(new Label("Your User Name : "));
          username=new TextField(20);
          add(username);
          username.setText("Umesh");
          connect=new Button("Connect");
          connect.addActionListener(this);
          add(connect);
          disconnect=new Button("Disconnect");
          disconnect.addActionListener(this);
          add(disconnect);
          message=new TextField(30);
          add(message);
          sendText=new Button("Send Text");
          sendText.addActionListener(this);
          add(sendText);
          fromserver=new TextArea(10,50);
          add(fromserver);
          fromserver.setEditable(false);
canvas = new Drawer();
          canvas.setSize(250,250);
          canvas.setBackground(Color.cyan);
          add(canvas);
          canvas.addMouseListener(this);
          canvas.addMouseMotionListener(this);
          send=new Button("Send");
          send.addActionListener(this);
          add(send);
          try
               UnicastRemoteObject.exportObject(this);
          catch(Exception e)
          setVisible(true);
          for(j=0;j<1000;j++)
               x[j]=0;
               y[j]=0;
          Coord = new String();
          Coord = "";
//          fa=new FrameApplet();
     public void mousePressed(MouseEvent me){}
     public void mouseReleased(MouseEvent me)
          Coord = Coord + "r";
     public void mouseClicked(MouseEvent me){}
     public void mouseEntered(MouseEvent me){}
     public void mouseExited(MouseEvent me){}
     public void mouseDragged(MouseEvent me)
          if (Coord == "")
               Coord = me.getX() + "," + me.getY();
          else
               Coord = Coord + " " + me.getX() + "," + me.getY();
     public void mouseMoved(MouseEvent me){}
     // RMI connection //
     private void connect()
          try
               service = (IChatService)Naming.lookup("rmi://pcname/ChatService");
               service.addClient(this);
               connected=true;
               setStatus();
               user=username.getText();
               Coord = "";
          catch(Exception e)
               fromserver.append("Error Connecting ...\n" + e);
               System.out.println(e);
               connected=false;
               setStatus();
               service=null;
     private void disconnect()
          try
               if(service==null)
                    return;
               service.removeClient(this);
               service=null;
          catch(Exception e)
               fromserver.append("Error Connecting ...\n");
          finally
               connected=false;
               setStatus();
     private void setStatus()
          if(connected)
               setTitle(title+" : Connected");
          else
               setTitle(title+" : Not Connected");
     // IChatClient methods //
     public String getName()
          return user;
     public void sendMessage(String msg)
          fromserver.append(msg+"\n");
     public void SendCanvasObject(String str)
          this.str = str;
          fromserver.append(str + "\n");
          Graphics g = canvas.getGraphics();
          paint(g);
     // Actionlistener //
     public void actionPerformed(ActionEvent e)
          if(e.getSource()==connect)
               connect();
               if(connected)
                    servername.setEnabled(false);
                    serverport.setEnabled(false);
                    username.setEnabled(false);
                    connect.setEnabled(false);
                    Coord = "";
          else
          if(e.getSource()==disconnect)
               disconnect();
               servername.setEnabled(true);
               serverport.setEnabled(true);
               username.setEnabled(true);
               connect.setEnabled(true);
          else
          if(e.getSource()==send)
               flag = true;
               if(service==null)
                    return;
               try
                    fromserver.append("Sending an image...\n");
                    service.SendCanvasObject(this,Coord);
                    i=0;
                    for(j=0;j<1000;j++)
                         x[j]=0;
                         y[j]=0;
                    Coord = "";
                    fromserver.append("\n" + "Image Sent...");
               catch(RemoteException re)
                    fromserver.append("Error Sending Message ...\n" + re);
               catch(Exception ee)
                    fromserver.append("Error Sending Message ...\n" + ee);
          else
          if(e.getSource()==sendText)
               if(service==null)
                    return;
               try
                    service.sendMessage(this,message.getText());
                    message.setText("");
               catch(RemoteException exp)
                    fromserver.append("Remote Error Sending Message ...\n" + exp);
               catch(Exception ee)
                    fromserver.append("Error Sending Message ...\n" + ee);
     public void paint(Graphics g)
          if(flag==true)
               i=0;
               StringTokenizer stoken = new StringTokenizer(str,"r");
               String strin = "";
               while(stoken.hasMoreTokens())
                    strin = stoken.nextToken();
                    fromserver.append("\n" + strin + "\n");
                    StringTokenizer stoken1 = new StringTokenizer(strin," ");
                    String strin1 = "";
                    j=0;
                    while(stoken1.hasMoreTokens())
                         strin1 = stoken1.nextToken();
                         fromserver.append("\n" + strin1 + "\n");
                         x[j]=Integer.parseInt(strin1.substring(0,strin1.indexOf(",")));
                         y[j]=Integer.parseInt(strin1.substring(strin1.indexOf(",")+1,strin1.length()));
                         j++;
                    for(int k=0;k<j-1;k++)
                         g.drawLine(x[k],y[k],x[k+1],y[k+1]);     
               i++;
import java.rmi.*;
import java.rmi.server.*;
import canvas.Drawer;
import java.util.*;
import ru.zhuk.graphics.*;
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
public class FrameApplet extends Applet implements ActionListener
     ChatClient f;
     public void init()
          Button b = new Button("Start Chat");
          b.addActionListener(this);
          add(b);
     public void actionPerformed(ActionEvent ae)
          f=new ChatClient("Chat");
          f.show();
          f.setSize(400,400);
here is html file which i calls from IE
<html>
<title>Micky Chat</title>
<body>
<br>
<br>
<center>
<applet code="FrameApplet.class" width=200 height=200>
</applet>
</center>
</body>
</html>
and at last a shocking thing is it is runs in Netscape displaying frames but not calling paint method.
pls. help me
thanks a lot
umesh

Answer 1

Hi Umesh!
Sorry that I cannot be too concrete about that since it has to be centuries ago when I fell over this problem.
As far as I can remember, the JDK provided by MS has no RMI built-in. These was probably one of the main reasons why Sun sued Microsoft concering its handling of Java.
Afterwards MS released a path for its Java Runtime that included RMI support, but AFAIK they never included it in the standard package. So much luck when searching for the ZIP! (-;
A little bit of googling might help, e.g.:
http://groups.google.com/groups?hl=de&lr=&ie=UTF-8&oe=UTF-8&threadm=37f8ddf6.4532124%40news.online.no&rnum=17&prev=/groups%3Fq%3Dmicrosoft%2Bjvm%2Brmi%2Bsupport%26start%3D10%26hl%3Dde%26lr%3D%26ie%3DUTF-8%26oe%3DUTF-8%26selm%3D37f8ddf6.4532124%2540news.online.no%26rnum%3D17
cheers,
kdi