The recommended way of doing things these days is to download jemplode.jar and just run the jar by double-clicking it. This is a problem in some cases because people have their zip tools associated with .jar (.jar is technically just .zip) rather than java.

From a full install, I believe jemplode.jar is in the "lib" directory not the install root. Basically you will need to overwrite a previous jemplode.jar. If you're just putting the current jemplode.jar in a folder somewhere where there wasn't one before (assuming you're upgrading here), then it's not enough.

If your doubleclick-jar is stolen by zip, you have two options 1) reinstall the jvm (www.java.com) which will reassociated .jar or 2) run jemplode.jar from the commandline or from a batch file "java -jar jemplode.jar".

ms