Can't be done I'm afraid - you can find "exe wrappers" but all they'll do is package up the jar file in an exe which, when clicked will use Java to run the jar file. If you want to run the project somewhere that doesn't have Java installed, you should be able to put the JRE on say a USB drive and run it from there?

Yes, it can't work with out JRE but I have picked up the classes which is needed by my jar application and made a mini jre(about 20M),then pack the mini jre with the exe which is packed from my jar and we can run the project just double click the exe now what's more ,I together packed them to a setup.exe(about 8M) I think it's stand alone and much smaller