OK. I stumbled at first as well. What you need to do first is set the properties for each of the bat files to have more memory. click on the memory tab for the properties and pick like 2560. This works for me. Make sure you compile core before gui. Do a search for *.class first and delete them all. That way the compiler will make all new good copies. Then you will need to copy the com directories under core and gui to one com directory. Then do a search for *.java in that new com folder and delete all the java files. Then use winzip to zip the com folder and keep the directory structure. Name that new file "LimeWire.jar" (Jar files are really zip files). You will also need to make a jar file containing RunLime.class, RunLime$1.class, and RunLime$2.class. They will be in the gui folder. If you need more help, I am available for IM and I can help you that way.