Visual Browser is now available as an Java Applet. This means that you do not have to install it. Visual Browser runs directly in the web browser window.
Java Applets are designed to make users of web browsers feel secure. This means, Java Applets have not all abilities that other applications have. Security restrictions concern access to the filesystem. Since Visual Browser displays data stored in files, it has a digital signature, by accepting it, you can run the application and the application can load files.
More about security restrictions...