Applet not running in local browser

I can run any applet from web.
I can run any applet in appletviewer.
But I can not run applets in browser from local html file.
I can not run even the demos that came with de SDK 1.4.1_01.
Can anyone give me some hint?
Maybe is very obvious but I ca not see it.
Thank you very much.
Valeriu Sprintu

the hello.java file is:
import java.applet.Applet;
import java.awt.Graphics;
public class hello extends Applet {
StringBuffer buffer;
     public void init() {
     public void start() {
     public void stop() {
     public void destroy() {
     public void paint(Graphics g) {
          //Draw a Rectangle around the applet's display area.
          g.drawRect(0, 0, size().width - 1, size().height - 1);
          //Draw the current string inside the rectangle.
          g.drawString("Hello", 5, 15);
The hello.html file is:
<html>
<body>
Applet should be there
<br>
<applet code="hello.class" width=200 height=200>
No applet
</applet>
</body>
</html>
hello.html and hello.class are of course in the same folder.
If I modify the .html file acording to OBJECT tag specifications for Java Plug-In the same applet runs OK in the browser (IE5.0 ).
I forgot to tell that I have installed the last version of SDK j2sdk1.4.1_01
<html>
<body>
Applet should be there
<br>
<OBJECT classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93"
WIDTH = 200 HEIGHT = 200 >
<PARAM NAME = CODE VALUE = "hello.class" >
<PARAM NAME="type" VALUE="application/x-java-applet;version=1.1">
No applet
</OBJECT>
</body>
</html>
I think there is a problem with the JVM from Microsoft
Thank you,
Best regards,
ValeriuS

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welcome1.java
public class welcome1 {
public static void main( String args[])
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