I haven't personally used JavaRA due to some earlier incompatibility with Vista (which I use). I'm not sure if this has been fixed yet, but it is a legit program. I came across it from trusted sources who are experienced members here on BC and other forums I frequent. If you feel more comfortable using the Add/Remove programs route, I would stick with that. either way will work.
Here are some instructions for JavaRa if you decide to try:
Download -- to your Desktop -- JavaRa.Zip from HERE
Unzip the download. This will create a new Folder, JavaRa on your Desktop.
Double click this new Folder to open it, and double click the file within: JavaRa to execute the program.
Click the button: Remove Older Versions.
Agree to the cleanup operation by clicking Yes. After a moment, a notice will appear that a log file has been produced. Click OK. Close the Notepad view that opens.
Click the button: Additional Tasks.
Choose these options:
Remove Useless JRE Files
Remove Startup Entry
Remove JavaRa Logfile
Click Go. When it finishes, click OK to close the panel, and then Exit the program.
Delete the download, and the unzipped folder and all contents.
Go to http://java.sun.com/javase/downloads/index.jsp
and download the latest Java, which as of today is now Java Runtime Environment (JRE) 6 Update 16
(fifth download down on the page)