Please follow these steps to download the Java Runtime Environment which enables you to see the simulation:

1. Go to the following Sun Microsystems web address
   http://java.sun.com/j2se/1.4.2/download.html
2. Under Download J2SE v 1.4.2_01 click on JRE DOWNLOAD for Windows Offline Installation
3. Read the terms and conditions. If you accept click on the Accept button at the bottom of the page.
4. Click on Download j2re-1_4_2_01-windows-i586.exe
5. Choose to save the file in the desired directory on your computer.
6. Once the download is complete double click on j2re-1_4_2_01-windows-i586.exe on your computer to install the java runtime environment.