Bytecode Visualizer LT is a free version of Bytecode Visualizer. You can compare the differences between the two products here.
If you have installed both Bytecode Visualizer and Bytecode Visualizer LT you probably want to evaluate a free trial of
Bytecode Visualizer first. In such a case, please follow The
First Steps with Bytecode Visualizer.
We recommend this because Bytecode Visualizer offers much more functionality
which would stay invisible to you if you start with Bytecode Visualizer LT.
You may get back to this document anytime in the future.
Bytecode Visualizer LT is a free. You do not need to buy a license to use it.
There are many situations in which Eclipse opens a *.class file: CTRL-Clicking into a class/method/field without source code, Stepping into in Debugger, etc. In such situations, Eclipse is using the default editor for the *.class file type.
Bytecode Visualizer LT is not set as default editor for *.class files during the installation. So, you probably want to adjust the File Associations in Preferences:
Window > Preferences > General > Editors > File Associations

Select the file type *.class and set Bytecode Visualizer LT as Default
Bytecode Visualizer LT is not as adjustable as Bytecode Visualizer. The preferences for both of them live in
Window > Preferences > Dr. Garbage > Bytecode Visualizer
Bytecode Visualizer LT listens only to some of them:
Please tell us, what you find good or bad on our products.