Java Launcher helps you run java applications and applets by double clicking Class files. But it is not all; you can see the source code of a file and the class hierarchies in colour by right clicking on a class file. IJava Launcher also display contents of jar and zip files without extracting them. Just right-click on the jar or zip file and you can see the contents, then save selected files to disk.
Java Launcher can compile thousands of Java files, execute and debug thousands of applications and applets all by just right clicking. You can also create Windows EXE files from Java applications with user icons, arguments of Java main method, system and user classpaths. Or you can create executable JAR files.
The unique feature of Java Launcher is the Java-Help-System, which can auto generate an advanced Help System for J2SE documentations. Once you have the Java Help System installed, programming speed and qualities will be accelerated because all the info you need will be there with you.
Java Launcher is a 2.7MB download and can run on all Windows installation.