If you have a copy of RepertoireRemote.jar on your local machine, you can just double-click on it and it will launch (provided your jar file associations haven't been altered). If the associations are not set up correctly, then you can use a command line (or batch file/shell script) like this:

java -jar RepertoireRemote.jar

. When launching the program from the client, you will need to click the connect button at the top left of the main frame in order to connect to the server. Enter the appropriate server name and port information, along with your username and password in order to connect.