Instructions for installing JJRadio:
 
1.  If you have a TS-590SG, and were using JJRadio prior to version 4.3.5, you'll need to change your radio's model to the TS590SG.  This process is described in the documentation section entitled "Version 4.3.5".

If you last installed JJRadio by downloading the .zip file from my web page, you'll need to uninstall it using Add or Remove Programs.  This applies to versions prior to 4.1.4.  Sorry, but I've changed the installation.
Note that this will not remove your configuration settings; they will be preserved.
 
2.  You may need to disable your anti-virus.
 
3.  Click the link on the web page to get the program
 
4.  You may either run or save the file.  If you save it, run the downloaded JJRadio.msi file.

When you run JJRadio for the first time, it is a good idea to read the documentation, at least the "Getting Started" section.