The latest MS JVM is required to run the UDP demo on the Ethernet Reference Design. This is installed by default if you already have IE5 on your computer. If you find that you don't have the latest MS JVM, here's the link to download it for free from Microsoft's website: http://www.microsoft.com/java/vm/dl_vm32.htm Once you have MS JVM installed, to run the UDP demo, simply open a DOS command window, 'cd' to the directory where you've unzipped the file UDPSX.ZIP, and type "wjview udpsx". Filename Description ------------------------------------------------------------------------------- MSJavaVM.exe Microsoft Java Virtual Machine V5.0 udp*.class Java Binaries for UDP demo application udpsx.java Java source code for UDP demo application readme.txt this file